FCC ID: 2AJJGHJRF Module

User manual 1. Summary 1.1 Functions Frequency band: 2405 ~ 2480MHz. FSK or GFSK modulation Low current consumption: RX 16mA, TX 20mA (at 0dBm output power). Low sleep current (1.5 uA). On chip regulator, support input voltage 2.0 ~ 3.6 V. Programmable data rate from 2Kbps to 500Kbps. Programmable TX power level from 20 dBm to 1 dBm. Ultra High sensitivity:

-95dBm at 500Kbps on-air data rate.

-97dBm at 250Kbps on-air data rate

-104dBm at 25Kbps on-air data rate

-107dBm at 2Kbps on-air data rate Easy to use. Support 3-wire or 4-wire SPI. ONE register setting for new channel frequency. 8-bits Digital RSSI for clear channel indication. Fast exchange mode during TRX role switching. Auto RSSI measurement. Auto Calibrations. Auto IF function. Auto CRC Check. 1.2 Application The module is built in a remote controller. The remote controller used to control household electric bed products. 2. Electrical characters Item Description EUT name Remark HJRF 1 2 3 4 5 6 7 8 9 10 11 12 EUT function 2.4GHz Wireless Module Operation frequency 2405MHz ~ 2480MHz Modulation Technology FSK or GFSK Manufacturer Supply voltage Current consumption Transmit output power Rx sensitivity Interface Dimension Richmat 2.0-3.6V 1.5uA(RC OSC OFF, typical) @Sleep mode 0.3uA(RC OSC ON, typical) @Idle mode 1.9mA(typical) @Standby mode 9mA(typical) @PLL mode 16mA(typical) @RX mode 20mA(typical) @TX mode 0 dBm

-95 dBm Data rate 500K

-97 dBm Data rate 250K

-104 dBm Data rate 25K

-107 dBm Data rate 2K 6 pin 2mm header 23 * 12.5 (mm) Operation Temperature

-40 ~ 85 3. Absolute Maximum Ratings Parameter With respect to Rating Unit Supply voltage range (VDD) GND

-0.3 ~ 3.6 V Digital IO pin range GND

-0.3 ~ VDD+0.3 V Voltage on the analog pins range GND

-0.3 ~ 2.1 V Input RF level 5 dBm Storage temperature range

-55 ~ 125 ESD rating MM HBM 2K 100 V V

*Stresses above those listed under Absolute Maximum Rating may cause permanent damage to the device. These are stress ratings only; functional operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.

*Device is ESD sensitive. Use appropriate ESD precautions. HBM (Human Body Mode) is tested under MIL-STD-883F Method 3015.7. MM (Machine Mode) is tested under JEDEC EIA/JESD22-

A115-A.

*Device is Moisture Sensitivity Level III (MSL 3) 4. Pin assignment 4.1 Pin distribution 4.2 Pin definition Pin No. 6 5 4 3 2 1 Symbol GND SCS SCK SDIO GIO1 VCC Function description Ground 3 wire SPI chip select 3 wire SPI clock input pin 3 wire SPI read/writer dada pin Multi-function GIO1/4-wire SPI data output PF module supply voltage input 5. Installation instructions This module can only be used when installed on host. This module should be welded on the PCB of host by professional person with professional tools. It is not approved for any party to change or modify the host, if without the manufacturers permission. 6. Warning Information for the OEM integrators This device is intended for OEM integrators only. Please see the full grant of equipment document for restrictions. Label information to the end user by the OEM integrators If this certified module is installed inside the hose device, then the outside of the host must be labelled with Contains FCC ID: 2AJJGHJRF. 7. The requirement for KDB 996369 D03:

7.1 List of applicable FCC rules FCC Part 15. 249. 7.2 Summarize the specific operational use conditions None 7.3 Limited module procedures The Module is limited to manufacturer's host devices only. 7.4 Trace antenna designs The module uses the permanent PCB antenna, so this requirement is not applicable to the product. 7.5 RF exposure considerations The host device manufacturer confirms that a separation distance of 5mm or less between the antenna of this host device and persons during the host device operation. 7.6 Antennas PCB antenna, 0dBi 7.7 Label and compliance information If this certified module is installed inside the host device, then the outside of the host must be labeled with Contains FCC ID: 2AJJGHJRF. 7.8 Information on test modes and additional testing requirements The host manufacturer can use the software to make RF transmit continuously. 7.9 Additional testing, Part 15 Subpart B disclaimer The module only complies with the FCC Part 15.249. If the module is installed in the host device, the host manufacturer is responsible for the compliance to any other FCC rules that apply to the host not covered by the modular transmitter grant of certification. For example, if the host manufacturer markets their product as being Part 15 Subpart B compliant (when it also contains unintentional-radiator digital circuity), then the host manufacturer shall provide a notice stating that the final host product still requires Part 15 Subpart B compliance testing with the modular transmitter installed. 8. HOST HJSR79 8.1 Host description:

The HJSR79 remote control is mainly used for the control of household electric bed products to realize wireless control of the motor, indoor and portable use. The remote control has only a built-in low-power SRD module HJ RF, crystal frequency 16MHz, working frequency range: 2.405-2.48GHz, modulation method GFSK, PCB antenna, gain 0dBi. Built-in DC-DC step-down circuit, low standby power consumption, can easily realize the wireless control of the product. 8.2 Host overview:

8.3 Remote control key diagram:

Fixed position (external support to participate in memory, first move the head and foot, then move the external support) Power-on reset Yes Alignment line Align the code and reset Fixed position

(mm) Head Foot ZG 43 83 SNORE 26 0 L 128 54 TV 199 75 8.4 Remote control function description:

(Motor sequence: head - foot - external support 1 - external support 2 - external support 3 near the power port) Key label Feature 1 2 3 4 5 6 7 8 9 10 11 External drag 2 (waist 1) rise, release stop (4th way) External drag 3 (waist 2) rise, release stop (5th way) In the music follow-up mode, press this button to increase the speaker volume, a total of 15 gears, the highest after the 15 gears, sound prompt "Maximum volume"

vibration intensity is not affected Drag 2 (waist 1) down, release stop (4th way) Drag 3 (waist 2) down, release stop (5th way) In the music follow-up mode, press this button to reduce the speaker Volume. After setting the tone to the lowest setting, the sound prompts "Min Volume", and the vibration intensity is not affected Under the bed light on/off (default 5 minutes off), remote control off, induction light is not good Bluetooth switch: When the device is powered on and Bluetooth is off, the Bluetooth device cannot be searched, and the button in the music follow-up operation area does not respond Press this button, the Bluetooth function will be turned on, and the audio prompt

"Bluetooth on, please wait" will be displayed. At this time, the Bluetooth device

(ZYKJ_XXXXX) can be found and connected. After successful connection, the audio prompt "bluetooth connected" will be displayed and music will be played. When powering on for the first time, the vibrator performs music follow-up operation at the default 2 levels of intensity (if the vibration intensity has been manually adjusted, it vibrates according to the adjusted intensity) Press the button again, the Bluetooth function is turned off, and the sound prompts

"Bluetooth off". Follow-up enhancement: In the music follow-up mode, press this button to increase the vibration intensity of the follow-up, and cycle according to 0-1-2-3 gear (enter the music follow-up mode, default 2 gear) (audio real-time broadcast status :massager off/massager low /massager medium/massager high) Back up, release to stop The motor runs to M1 position with one click (no initial value). 12 13 14 15 16 17 18 19 20 21 Multiplexing function: FLAT+M1, backlight flashing, buzzer ringing, record current motor position to M1. (Power off does not clear) Feet up, release to stop Back down, release to stop One-click reset: All motors run to the horizontal position with one click Foot down, release to stop Drag one (neck) up, release to stop (third way) Drag one (neck) down, release stop (third way) Reuse function key: Before pressing the key, if the massager is in working state, all the massagers will be turned off after pressing the key, and the working time of the next massage motor will be set for 10min, 20min,30min respectively (audio broadcast:

massager off). The timing time is displayed through two indicators. If the massager is not in working state, the working time of the massage motor is directly fixed for the next time Head massager enhancement: Press the button, if the head massager does not start, start the head massager and enter "CONSTANT" mode; If the head massage motor is started, increase the vibrational intensity of the massager,1 23 off, cycle switch

(default 30 minutes off) Intensity 1,10 minutes light red, intensity 2, 20 minutes light green, intensity 3, two lights together bright blue. (Intensity status audio broadcast:

massager off/massager low /massager medium/massager high) Mode switching --CONSTANT-PULSE-WAVE Massage motor mode adjustment, after the massager has been started, press this button, the working massage motor will enter the "PULSE" mode, press the button again, the massage motor will enter the "WAVE" mode, press the button again, the massage motor will enter the "CONSTANT" mode, and then cycle. One CONSTANT buzzer, two PULSE buzzers, three WAVE buzzers, Also display the current intensity color

(audio real-time broadcast status: broadcast after the massager is turned on massager mode one/ massager mode two/massager mode three) Foot massager enhancement: Press the button, if the foot massager does not start, start the foot massager and enter "CONSTANT" mode; If the foot massage motor is started, increase the vibration intensity of the massager, 123 off, and cycle switch (default 30 minutes off). Intensity 1,10 minutes light red, intensity 2,20 minutes light green, intensity 3, two lights together light blue. Coding method:

[Remote control head rise + foot rise + control box code key] Buzzer sounds, indicating successful code

*The control box has a reset function for code keys

* The control box is powered on and reset, and all motors are reset. The reset process cannot be interrupted by any key. (During power-on reset, reset the head and foot first, and reset the other three ways later) Smart Set Lock (After unlocking the lock in the APP, the following functions are available ***) 1When the user is in bed, the control box controls the operation of each motor to the Smart Position

(leisure position). At this time, the remote control and APP can be operated directly 2When the user leaves the bed, the sleep detection belt detects that when the user is not in bed for more than 10 minutes, the remote control and APP are locked and cannot be operated. The remote control needs to be unlocked to operate. The APP can operate only after the Smart Set Lock is disabled. APP and remote control only need to unlock one of them, and the other one will unlock automatically (after the remote control is unlocked, the APP display is not synchronized).

(Remote control lock: remote control waist 1 l + waist 2 L, buzzer sounds, indicating unlocking) Note: After the lock, use the remote control or APP to control the control box buzzer will ring, indicating that it has been locked, and can not be controlled at this time. 3Sleep aid: the mobile APP connects to the Bluetooth speaker to play white noise sleep aid music, detects that the user is falling asleep, automatically suspends the music play and executes the FLAT command on the bed. Anti-snoring function:

When someone is asleep in bed, When the first snoring is received, the next snoring is received within a minute, and the motor slowly runs to the preset position. After the snoring intervention, the timer starts. If no snoring occurs within 5 minutes, the bed should be placed flat. If the judgment condition is triggered within 5 minutes, reset the time and restart the timing intermittently: after the snoring intervention, the timing will start. If the judgment condition is not triggered within 1 hour, the work will be judged as finished and the work will start again. Note:

To protect the reliability and safety of the motor and control box, do not switch keys frequently. 8.5 Warning:

This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

Reorient or relocate the receiving antenna. Increase the separation between the equipment and receiver. Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. Consult the dealer or an experienced radio/TV technician for help. 9. HOST HJSR79B 9.1 Host description:

The HJSR79B remote control is mainly used for the control of household electric bed products to realize wireless control of the motor, indoor and portable use. The remote control has only a built-in low-power SRD module HJ RF, crystal frequency 16MHz, working frequency range: 2.405-2.48GHz, modulation method GFSK, PCB antenna, gain 0dBi. Built-in DC-DC step-down circuit, low standby power consumption, can easily realize the wireless control of the product. 9.2 Host overview:

9.3 Remote control key diagram:

9.4 Remote control function description:

Key label Feature 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 Short press to release run to TV position (with initial value). Multiplexing function: (FLAT+TV), backlight flashing, buzzer sound, record the current motor position to the TV position. (Power off to clear). Short press to release the run to the LOUNGE position (with initial value). Reuse function: (FLAT+LOUNGE), backlight flashes, buzzer sounds, record the current motor position to the LOUNGE position. (Power off to clear). Short press release runs to SNORE position (with initial value). Multiplex function: (FLAT+SNORE), backlight flashes, buzzer sounds, record current motor position to SNORE position. (Power off to clear). Short press release run to ZG position (with initial value). Multiplexing function: (FLAT+ZG), backlight flashing, buzzer ringing, record the current motor position to the ZG position. (Power off to clear). Back motor, foot motor out at the same time, release to stop. Back motor, foot motor retract at the same time, release stop. Back motor extended, release to stop Short press release runs to M1 position (no initial value). Multiplexing function: (FLAT+M1), backlight flashing, buzzer ringing, record current motor position to M1 position. (Power off does not clear) Foot motor out, release to stop Back motor retracts, release to stop One-button reset, all motors retracted to the minimum stroke position, power-on reset Foot motor retracts, release to stop Head massager enhanced, massager can be opened (30 minutes from Move off) (123 close cycle switch), and display the current massage time Underbed light on/off (default: 15 minutes off) Foot massager enhanced, massager can be opened (30 minutes from Move off) (123 close cycle switch), and display the current massage time Mode switch --CONSTANT-PULSE-WAVE(display current working time of massager) Press the flashlight to turn on, release the flashlight to turn off Massager off. The working time of the massager is set to 10min, 20min, 30min respectively, and the timing time is displayed by two indicators Coding method:

[Remote control head rise + foot rise + control box code key] Buzzer sounds, indicating successful code

* The control box has a reset function for the code key

* The control box is powered on and reset, all motors are reset at the same time, and the reset process cannot be interrupted by any key 9.5 Warning:

This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

Reorient or relocate the receiving antenna. Increase the separation between the equipment and receiver. Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. Consult the dealer or an experienced radio/TV technician for help. 10. HOST HJSR79C Host description:

10.1 The HJSR79C remote control is mainly used for the control of household electric bed products to realize wireless control of the motor, indoor and portable use. The remote control has only a built-in low-power SRD module HJ RF, crystal frequency 16MHz, working frequency range: 2.405-2.48GHz, modulation method GFSK, PCB antenna, gain 0dBi. Built-in DC-DC step-down circuit, low standby power consumption, can easily realize the wireless control of the product. 10.2 Host overview:

10.3 Remote control key diagram:

10.4 Remote control function description:

Key label Feature Run to TV position with one click (with initial value). Multiplexing function: FLAT+TV, backlight flashing, buzzer ringing, record the current motor position to the TV position. (Power off to clear, restore the initial value) One-click to the LOUNGE location (with initial value). Reuse function: FLAT+LOUNGE, backlight flashing, buzzer ringing, record the current motor position to the LOUNGE position. (Power off to clear, restore the initial value) One-click run to SNORE location (with initial value). Multiplexing function: FLAT+SNORE, backlight flashing, buzzer ringing, record current motor position to SNORE position. (Power off to clear, restore the initial value) One-click run to ZG position (with initial value). Multiplexing function: FLAT+ZG, backlight flashing, buzzer ringing, record the current motor position to the ZG position. (Power off to clear, restore the initial value) Back, leg motor out, release stop Back, leg motor retract, release stop Back motor extended, release to stop One-click run to M1 mode position (no initial value). Multiplexing function: FLAT+M1, backlight flashing, buzzer ringing, record current motor position to M1. (Power off does not clear) Foot motor out, release to stop Back motor retracts, release to stop One-button reset, all motors retracted to the minimum stroke position, power on and reset Foot motor retracts, release to stop 1 2 3 4 5 6 7 8 9 10 11 12 Coding method:

[Remote control head rise + foot rise + control box code key] Buzzer sounds, indicating successful code.

* The control box has a reset function for the code key

* The control box is powered on and reset. The reset process cannot be interrupted by any key 10.5 Warning:

This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

Reorient or relocate the receiving antenna. Increase the separation between the equipment and receiver. Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. Consult the dealer or an experienced radio/TV technician for help.

H158B Remote Control Manual Remote control key diagram Remote Control Function Description Key label 1 2 3 4 5 6 7 8 9 10 11 Feature Back motor extended, release to stop Foot motor extended, release to stop Back motor retracts, release to stop Foot motor retracts, release to stop One-button reset, all motors retracted to the minimum stroke position, power-on reset Back motor, foot motor out at the same time, release to stop Back motor, foot motor retract at the same time, release stop. Press the flashlight to turn on, release the flashlight to turn off The motor runs to TV position with one click . Reuse function: Press and hold TV for about 3 seconds, the backlight will flash and the buzzer will sound, and the current motor position will be recorded to TV The motor runs to SNORE position with one click . Reuse function: Press and hold SNORE for about 3 seconds, the backlight will flash and the buzzer will sound, and the current motor position will be recorded to SNORE The motor runs to ZG position with one click . 1

Reuse function: Press and hold ZG for about 3 seconds, the backlight will flash and the buzzer will sound, and the current motor position will be recorded to ZG Coding method:

[Remote control foot rise + Back descent+ control box code key] Buzzer sounds, indicating successful code

* The control box has a reset function for the code key

* The control box is powered on and reset, all motors are reset at the same time, and the reset process cannot be interrupted by any key Caution:

This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and

(2) this device must accept any interference received, including interference that may cause undesired operation. Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

Reorient or relocate the receiving antenna. Increase the separation between the equipment and receiver. Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. Consult the dealer or an experienced radio/TV technician for help. 2

H158 Remote Control Manual Remote control key diagram Remote Control Function Description Key label Feature 1 2 3 4 5 6 7 8 9 Back motor extended, release to stop Foot motor extended, release to stop Back motor retracts, release to stop Foot motor retracts, release to stop The motor runs to M1 position with one click . Reuse function: Press and hold M1 for about 3 seconds, the backlight will flash and the buzzer will sound, and the current motor position will be recorded to M1 The motor runs to M2 position with one click . Reuse function: Press and hold M2 for about 3 seconds, the backlight will flash and the buzzer will sound, and the current motor position will be recorded to M2 Press the flashlight to turn on, release the flashlight to turn off The motor runs to M3 position with one click . Reuse function: Press and hold M3 for about 3 seconds, the backlight will flash and the buzzer will sound, and the current motor position will be recorded to M3 One-button reset, all motors retracted to the minimum stroke position, power-on reset 1

Coding method:

[Remote control head rise + foot rise + control box code key] Buzzer sounds, indicating successful code

* The control box has a reset function for the code key

* The control box is powered on and reset, all motors are reset at the same time, and the reset process cannot be interrupted by any key Caution:

This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and

(2) this device must accept any interference received, including interference that may cause undesired operation. Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

Reorient or relocate the receiving antenna. Increase the separation between the equipment and receiver. Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. Consult the dealer or an experienced radio/TV technician for help. 2

H159 Remote Control Manual Remote control key diagram Remote Control Function Description 1 2 3 4 5 6 7 8 Key label Feature Underbed light on/off (default: 15 minutes off) The motor runs to M1 position with one click . Reuse function: Press and hold M1 for about 3 seconds, the backlight will flash and the buzzer will sound, and the current motor position will be recorded to M1 The motor runs to SNORE position with one click . Reuse function: Press and hold SNORE for about 3 seconds, the backlight will flash and the buzzer will sound, and the current motor position will be recorded to SNORE The motor runs to M2 position with one click . Reuse function: Press and hold M2 for about 3 seconds, the backlight will flash and the buzzer will sound, and the current motor position will be recorded to M2 Back motor extended, release to stop Foot motor extended, release to stop Back motor retracts, release to stop Foot motor retracts, release to stop 1

9 10 11 12 13 14 15 16 17 18 One-button reset, all motors retracted to the minimum stroke position, power-on reset Once the external drag rises, release the TILT to stop the third way Drag outward and lower, release and stop (TILT) the third way External drag two rises, release and stop (LUMBAR) the fourth way External drag two descent, release and stop (LUMBAR) the fourth way Head massager enhancement: Press the button, if the head massager is not activated, start the head massager and enter the "CONSTANT" mode; If the head massage motor has been activated, increase the vibration intensity of the massager, 1 2 3 off, and cycle switching. (Default 30 minute shutdown) Foot massager enhancement: Press the button, if the foot massager is not activated, start the foot massager and enter the "CONSTANT" mode; If the foot massage motor has been activated, increase the vibration intensity of the massager, 1 2 3 off, and cycle switching. (Default 30 minute shutdown) Press the flashlight to turn on, release the flashlight to turn off Massage motor mode adjustment. After the massager is turned on, press this button to enter the "PULSE" mode for the working massage motor. Press the button again to enter the "WAVE" mode for the massage motor. Press the button again to enter the "CONSTANT" mode for the massage motor. Press the button again to enter the "PULSE" mode and cycle in sequence The massager is turned off. The working time of the massager is timed, set to 10min, 20min, and 30min respectively, and the timing time is displayed through the indicator light Coding method:

[Remote control Back rise + foot rise + control box code key] Buzzer sounds, indicating successful code

* The control box has a reset function for the code key

* The control box is powered on and reset, all motors are reset at the same time, and the reset process cannot be interrupted by any key 2

Caution:

This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and

(2) this device must accept any interference received, including interference that may cause undesired operation. Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

Reorient or relocate the receiving antenna. Increase the separation between the equipment and receiver. Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. Consult the dealer or an experienced radio/TV technician for help. 3

HJ RF Module SPEC V1.0 Index 1. Summary ................................................................................................................................. 3 1.1 Functions ............................................................................................................................. 3 1.2 Application .......................................................................................................................... 3 2. Electrical characters ............................................................................................................... 4 3. Absolute Maximum Ratings .................................................................................................. 5 4. Pin assignment ....................................................................................................................... 6 pin distribution .............................................................................................................. 6 Pin definition ................................................................................................................. 6 5. Reference schematic ............................................................................................................. 7 6. Warning .................................................................................................................................... 8 7. The requirement for KDB 996369 D03: .............................................................................. 9 4.1 4.2 1. Summary 1.1 Functions Frequency band: 2405 ~ 2480MHz. FSK or GFSK modulation Low current consumption: RX 16mA, TX 20mA (at 0dBm output power). Low sleep current (1.5 uA). On chip regulator, support input voltage 2.0 ~ 3.6 V. Programmable data rate from 2Kbps to 500Kbps. Programmable TX power level from 20 dBm to 1 dBm. Ultra High sensitivity:

-95dBm at 500Kbps on-air data rate.

-97dBm at 250Kbps on-air data rate

-104dBm at 25Kbps on-air data rate

-107dBm at 2Kbps on-air data rate Easy to use. Support 3-wire or 4-wire SPI. ONE register setting for new channel frequency. 8-bits Digital RSSI for clear channel indication. Fast exchange mode during TRX role switching. Auto RSSI measurement. Auto Calibrations. Auto IF function. Auto CRC Check. 1.2 Application Wireless keyboard and mice Remote control Helicopter and airplane radio controller 2400 ~ 2483.5 MHz ISM system Wireless metering and building automation Wireless toys and game controllers 3 2. Electrical characters Item Description EUT Name EUT Function 2.4GHz Wireless Module Operation Frequency 2405MHz-2480MHz Modulation Technology FSK OR GFSK Manufacturer supply voltage Remark HJRF Richmat 2.0-3.6V 1.5uA(RC OSC OFF,typical) @Sleep mode 0.3uA(RC OSC ON,typical) @Idle mode 1.9mA( typical) @Standby mode 9mA( typical) @PLL mode 16mA( typical) @RX mode 20mA( typical) @TX mode Current consumption Transmit output power 0 dBm

-95 dBm Data rate 500K

-97 dBm Data rate 250K -104 dBm Data rate 25K -107 dBm Rx sensitivity Data rate 2K Interface Dimension Operating temperature 6 pin 2mm header 23*12.5 (mm)

-40 ~ 85 1 2 3 4 5 6 7 8 9 10 11 12 4 3. Absolute Maximum Ratings Parameter With respect to Rating Unit Supply voltage range

(VDD) GND

-0.3 ~ 3.6 Digital IO pins range GND

-0.3 ~ VDD+0.3 V Voltage on the analog pins range Input RF level Storage Temperature range ESD Rating MM GND 5

-55 ~ 125 HBM 100

-0.3 ~ 2.1 dBm C 2K V V V V

*Stresses above those listed under Absolute Maximum Rating may cause permanent damage to the device. These are stress ratings only; functional operation of the device at these or any other conditions above those indicated in the sections of this specification is not implied. Exposure to absolute-maximum-rated conditions for extended periods may operational affect device reliability.

*Device is ESD sensitive. Use appropriate ESD precautions. HBM (Human Body Mode) is tested under MIL-STD-883F Method 3015.7. MM (Machine Mode) is tested under JEDEC EIA/JESD22-A115-A.

*Device is Moisture Sensitivity Level III (MSL 3) 5 4. Pin assignment 4.1 pin distribution 4.2 Pin definition Pin No. Symbol 1 2 3 4 5 6 GND SCS SCK SDIO GIO1 VCC Function Description Ground 3 wire SPI chip select 3 wire SPI clock input pin 3 wire SPI read/writer data pin Multi-function GIO1/4-wire SPI data output RF Module Supply voltage input 6 5. Reference schematic 7 6. Warning This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions:

(1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. Caution: Changes or modifications to this unit not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

Reorient or relocate the receiving antenna. Increase the separation between the equipment and receiver. Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. Consult the dealer or an experienced radio/TV technician for help. Information for the OEM Integrators This device is intended for OEM integrators only. Please see the full grant of equipment document for restrictions. Label Information to the End User by the OEM Integrators If this certified module is installed inside the host device, then the outside of the host must be labeled with Contains FCC ID: 2AJJGHJRF. 8 7. The requirement for KDB 996369 D03:

7.1 List of applicable FCC rules FCC Part 15. 249. 7.2 Summarize the specific operational use conditions None 7.3 Limited module procedures The Module is limited to manufacturer's host devices only. 7.4 Trace antenna designs The module uses the permanent PCB antenna, so this requirement is not applicable to the product. 7.5 RF exposure considerations The host device manufacturer should confirm that a separation distance of 20 cm or more should be maintained between the antenna of this host device and persons during the host device operation. 7.6 Antennas PCB antenna, 0dBi 7.7 Label and compliance information If this certified module is installed inside the host device, then the outside of the host must be labeled with Contains FCC ID: 2AJJGHJRF. 7.8 Information on test modes and additional testing requirements The host manufacturer can use the software to make RF transmit continuously. 7.9 Additional testing, Part 15 Subpart B disclaimer The module only complies with the FCC Part 15.249. If the module is installed in the host device, the host manufacturer is responsible for the compliance to any other FCC rules that apply to the host not covered by the modular transmitter grant of certification. For example, if the host manufacturer markets their product as being Part 15 Subpart B compliant (when it also contains unintentional-radiator digital circuity), then the host manufacturer shall provide a notice stating that the final host product still requires Part 15 Subpart B compliance testing with the modular transmitter installed. 9

Qingdao Richmat Intelligence Technology Inc Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA Date: 12-07-2023 Ref: Attestation Statements Part 2.911(d)(5)(i) Filing FCC ID:2AJJGHJRF Qingdao Richmat Intelligence Technology Inc(the applicant) certifies that the equipment for which authorization is sought is not covered equipment prohibited from receiving an equipment authorization pursuant to section 2.903 of the FCC rules. Sincerely, Chongjie Yuan Rev 1/26/2023 Qingdao Richmat Intelligence Technology Inc Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA Date: 12-07-2023 Ref: Attestation Statements Part 2.911(d)(5)(ii) Filing FCC ID: 2AJJGHJRF Qingdao Richmat Intelligence Technology Inc(the applicant) certifies that, as of the date of the filing of the application, the applicant is not identified on the Covered List (as a specifically named entity or any of its subsidiaries or affiliates) as an entity producing covered equipment. Sincerely, Chongjie Yuan Rev 1/26/2023

Qingdao Richmat Intelligence Technology Inc Date: December 7, 2023 Federal Communications Commission Equipment Authorization Branch 7435 Oakland Mills Road Columbia, MD 21046 Request of Class II Permissive Change Company name: Qingdao Richmat Intelligence Technology Inc FCC ID: 2AJJGHJRF FCC Part 15 Certification Gentlemen, This is to request a Class II Permissive Change for FCC ID: 2AJJGHJRF originally granted on 02/21/2021. The major change filed under application is:

Change 1: Add 3 models of hosts. The new models of hosts are H158, H158B and H159. If you have any questions regarding this application, please feel free to contact Contact name: Chongjie Yuan Company name: Qingdao Richmat Intelligence Technology Inc Phone No.: +86 0532-88598149 Sincerely, Qingdao Richmat Intelligence Technology Inc Signature ______________________________ Chongjie Yuan/Certification Engineer Typed name and Title

Qingdao Richmat Intelligence Technology Inc Date:December 12, 2023 Federal Communications Commission Authorization and Evaluation Division Confidentiality Request regarding application for certification of FCC ID:2AJJGHJRF Pursuant to Sections 0.457 and 0.459 of the Commissions Rules, we hereby request confidential treatment of information accompanying this application as outlined below:

Exhibit Type Schematics Block Diagram File Name Schematic.pdf Block Diagram.pdf The above materials contain trade secrets and proprietary information not customarily released to the public. The public disclosure of these materials may be harmful to the applicant and provide unjustified benefits to its competitors. The applicant understands that pursuant to Section 0.457 of the Rules, disclosure of this application and all accompanying documentation will not be made before the date of the Grant for this application. Sincerely, Qingdao Richmat Intelligence Technology Inc Signature Chongjie Yuan/Certification Engineer Typed name and Title

Qingdao Richmat Intelligence Technology Inc Request for Modular/Limited Modular Approval Date: December 12, 2023 Subject: Manufacturers Declaration for - Modular Approval

- Split Modular Approval

- Limited Modular Approval - Limited Split Modular Approval Confidentiality Request for: FCC ID: 2AJJGHJRF 8 Basic Requirements FCC Part 15.212(a)(1) For Items Marked NO(*), the Limited Module Description Must be Filled Out on the Following Pages Modular Approval Requirement Requirement Met 1. The modular transmitter must have its own RF shielding. This is intended to ensure that the module does not have to rely upon the shielding provided by the device into which it is installed in order for all modular transmitter emissions to comply with FCC limits. It is also intended to prevent coupling between the RF circuitry of the module and any wires or circuits in the device into which the module is installed. Such coupling may result in non-compliant operation. The physical crystal and tuning capacitors may be located external to the shielded radio elements. 15.212(a)(1)(i)

- YES - NO(*) Details: <example The module contains a metal shield which covers all RF components and circuitry. The shield is located on the top of the board next to antenna connector>

2. The modular transmitter must have buffered modulation/data inputs (if such inputs are provided) to ensure that the module will comply with FCC requirements under conditions of excessive data rates or over-modulation. 15.212(a)(1)(ii)

- YES - NO(*) Details: <example Data to the modulation circuit is buffered as described in the operational description provided with the application>

3. The modular transmitter must have its own power supply regulation on the module. This is intended to ensure that the module will comply with FCC requirements regardless of the design of the power supplying circuitry in the device into which the module is installed. 15.212(a)(1)(iii)

- YES - NO(*) Details: <example The module contains its own power supply regulation. Please refer to schematic filed with this application>

4. The modular transmitter must comply with the antenna and transmission system requirements of 15.203, 15.204(b), 15.204(c), 15.212(a), and 2.929(b). The antenna must either be permanently attached or employ a unique antenna coupler (at all connections between the module and the antenna, including the cable). The professional installation provision of 15.203 is not applicable to modules but can apply to limited modular approvals under paragraph 15.212(b). 15.212(a)(1)(iv)

- YES - NO(*) Details: <example The module connects to its antenna using an UFL connector which is considered a non-standard connector. A list of antennas tested and approved with this device may be found in users manual provided with the application>

5. The modular transmitter must be tested in a stand-alone configuration, i.e., the module must not be inside another device during testing. This is intended to demonstrate that the module is capable of complying with Part 15 emission limits regardless of the device into which it is eventually installed. Unless the transmitter module will be battery powered, it must comply with the AC line conducted requirements found in Section 15.207. AC or DC power lines and data input/output lines connected to the module must not contain ferrites, unless they will be marketed with the module (see Section 15.27(a)). The length of these lines shall be length typical of actual use or, if that length is unknown, at least 10 centimeters to insure that there is no coupling between the case of the module and supporting equipment. Any accessories, peripherals, or support equipment connected to the module during testing shall be unmodified or commercially available (see Section 15.31(i)). 15.212(a)(1)(v)

- YES - NO(*) Details: <example The module was tested stand-alone as shown in test setup photographs filed with this application>

- Must be signed by applicant contact given for applicant on the FCC site, or by the authorized agent if an appropriate authorized agent letter has been provided. Letters should be placed on appropriate letterhead. Qingdao Richmat Intelligence Technology Inc Modular Approval Requirement 6. The modular transmitter must be labeled with its own FCC ID number, or use an electron display (see Requirement Met KDB Publication 784748). If using a permanently affixed label with its own FCC ID number, if the FCC ID is not visible when the module is installed inside another device, then the outside of the device into which the module is installed must also display a label referring to the enclosed module. This exterior label can use wording such as the following: Contains Transmitter Module FCC ID: XYZMODEL1 or Contains FCC ID:

XYZMODEL1. Any similar wording that expresses the same meaning may be used. The Grantee may either provide such a label, an example of which must be included in the application for equipment authorization, or, must provide adequate instructions along with the module which explain this requirement. In the latter case, a copy of these instructions must be included in the application for equipment authorization. If the modular transmitter uses an electronic display of the FCC identification number, the information must be readily accessible and visible on the modular transmitter or on the device in which it is installed. If the module is installed inside another device, then the outside of the device into which the module is installed must display a label referring to the enclosed module. This exterior label can use wording such as the following: Contains FCC certified transmitter module(s). Any similar wording that expresses the same meaning may be used. The user manual must include instructions on how to access the electronic display. A copy of these instructions must be included in the application for equipment authorization. 15.212(a)(1)(vi)

- YES - NO(*) Details: <example There is a label on the module as shown in the labeling exhibit filed with this application. Host specific labeling instructions are shown in the installation manual .filed with this application.>

7. The modular transmitter must comply with all specific rule or operating requirements applicable to the transmitter, including all the conditions provided in the integration instructions by the grantee. A copy of these instructions must be included in the application for equipment authorization. For example, there are very strict operational and timing requirements that must be met before a transmitter is authorized for operation under Section 15.231. For instance, data transmission is prohibited, except for operation under Section 15.231(e), in which case there are separate field strength level and timing requirements. Compliance with these requirements must be assured. 15.212(a)(1)(vii)

- YES - NO(*) Details: <example The module complies with FCC Part 15C requirements. Instructions to the OEM installer are provided in the installation manual filed with this application.>

8. The modular transmitter must comply with any applicable RF exposure requirements. For example, FCC Rules in Sections 2.1091, 2.1093 and specific Sections of Part 15, including 15.319(i), 15.407(f), 15.253(f) and 15.255(g), require that Unlicensed PCS, UNII and millimeter wave devices perform routine environmental evaluation for RF Exposure to demonstrate compliance. In addition, spread spectrum transmitters operating under Section 15.247 are required to address RF Exposure compliance in accordance with Section 15.247(b)(4). Modular transmitters approved under other Sections of Part 15, when necessary, may also need to address certain RF Exposure concerns, typically by providing specific installation and operating instructions for users, installers and other interested parties to ensure compliance. 15.212(a)(1)(viii)

- YES - NO(*) Details: <example The module meets Portable exclusion levels as shown in the RF exposure information filed with this application.>

- Must be signed by applicant contact given for applicant on the FCC site, or by the authorized agent if an appropriate authorized agent letter has been provided. Letters should be placed on appropriate letterhead. Qingdao Richmat Intelligence Technology Inc Limited Module Description When Applicable

* If a module does NOT meet one or more of the above 8 requirements, the applicant may request Limited Modular Approval (LMA). This Limited Modular Approval (LMA) is applied with the understanding that the applicant will demonstrate and will retain control over the final installation of the device, such that compliance of the end product is always assured. The operating condition(s) for the LMA;

the module is only approved for use when installed in devices produced by grantee. A description regarding how control of the end product, into which the module will be installed, will be maintained by the applicant/manufacturer, such that full compliance of the end product is always ensured should be provided here. Details: <example - N/A>

Software Considerations KDB 594280 / KDB 442812 (One of the following 2 items must be applied) Requirement 1. For non-Software Defined Radio transmitter modules where software is used to ensure compliance of the device, technical description must be provided about how such control is implemented to ensure prevention of third-party modification; see KDB Publication 594280. Requirement Met

- Provided in Separate Cover Letter

- N/A Details: <example The firmware of the device can not be modified or adjusted by the end user as described in a separate cover letter filed with this application. >

2. For Software Defined Radio (SDR) devices, transmitter module applications must provide a software security description; see KDB Publication 442812.

- Provided in Separate Cover Letter

- N/A Details: <example N/A>

Split Modular Requirements Requirement Provided in Manual 1. For split modular transmitters, specific descriptions for secure communications between front-end and control sections, including authentication and restrictions on third-party modifications; also, instructions to third-party integrators on how control is maintained.

- Provided in Separate Cover Letter

- N/A Details: <example N/A >

- Must be signed by applicant contact given for applicant on the FCC site, or by the authorized agent if an appropriate authorized agent letter has been provided. Letters should be placed on appropriate letterhead. Qingdao Richmat Intelligence Technology Inc OEM Integration Manual Guidance KDB 996369 D03 Section 2 Clear and Specific Instructions Describing the Conditions, Limitations, and Procedures for third-parties to use and/or integrate the module into a host device. Requirement Is this module intended for sale to third parties?

- YES

- No, If No, and LMA applies, the applicant can optionally choose to not make the following detailed info public. However there still needs to be basic integration instructions for a users manual and the information below must still be included in the operational description. If the applicant wishes to keep this info confidential, this will require a separate statement cover letter explaining the module is not for sale to third parties and that integration instructions are internal confidential documents. Items required to be in the manual See KDB 996369 D03, Section 2 As of May 1, 2019, the FCC requires ALL the following information to be in the installation manual. Modular transmitter applicants should include information in their instructions for all these items indicating clearly when they are not applicable. For example information on trace antenna design could indicate Not Applicable. Also if a module is limited to only a grantees own products and not intended for sale to third parties, the user instructions may not need to be detailed and the following items can be placed in the operational description, but this should include a cover letter as cited above. 1. List of applicable FCC rules. KDB 996369 D03, Section 2.2 a. Only list rules related to the transmitter. 2. Summarize the specific operational use conditions. KDB 996369 D03, Section 2.3 a. Conditions such as limits on antennas, cable loss, reduction of power for point to point 3. Limited Module Procedures. KDB 996369 D03, Section 2.4 systems, professional installation info a. Describe alternative means that the grantee uses to verify the host meets the necessary limiting conditions b. When RF exposure evaluation is necessary, state how control will be maintained such that compliance is ensured, such as Class II for new hosts, etc. 4. Trace antenna designs. KDB 996369 D03, Section 2.5 a. Layout of trace design, parts list, antenna, connectors, isolation requirements, tests for design verification, and production test procedures for ensuring compliance. If confidential, the method used to keep confidential must be identified and information provided in the operational description. 5. RF exposure considerations. KDB 996369 D03, Section 2.6 a. Clearly and explicitly state conditions that allow host manufacturers to use the module. Two types of instructions are necessary: first to the host manufacturer to define conditions (mobile, portable xx cm from body) and second additional text needed to be provided to the end user in the host product manuals. 6. Antennas. KDB 996369 D03, Section 2.7 a. List of antennas included in the application and all applicable professional installer instructions when applicable. The antenna list shall also identify the antenna types

(monopole, PIFA, dipole, etc note that omni-directional is not considered a type) 7. Label and compliance information. KDB 996369 D03, Section 2.8 a. Advice to host integrators that they need to provide a physical or e-label stating Contains FCC ID: with their finished product 8. Information on test modes and additional testing requirements. KDB 996369 D03, Section 2.9 a. Test modes that should be taken into consideration by host integrators including clarifications necessary for stand-alone and simultaneous configurations. b. Provide information on how to configure test modes for evaluation 9. Additional testing, Part 15 Subpart B disclaimer. KDB 996369 D03, Section 2.10

- All Items shown to the left are provided in the Modular Integration Guide (or UM) for Full Modular Approval (MA) or LMA.

- An LMA applies and is approved ONLY for use by the grantee in their own products, and not intended for sale to 3rd parties as provided in a separate cover letter. Therefore the information shown to the left is found in the theory of operation. Sincerely, By:

(Signature/Title1)

(Print name) Chongjie Yuan

- Must be signed by applicant contact given for applicant on the FCC site, or by the authorized agent if an appropriate authorized agent letter has been provided. Letters should be placed on appropriate letterhead.

Qingdao Richmat Intelligence Technology Inc FCC ID:2AJJGHJRF POWER OF ATTORNEY Date: December 7, 2023 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 To Whom It May Concern:

We, the undersigned, hereby authorize Waltek Testing Group (Foshan) Co., Ltd.

(Dara Zhou) on our behalf, to apply to the Federal Communications Commission on our equipment. Any and all acts carried out by Waltek Testing Group (Foshan) Co., Ltd. (Dara Zhou) on our behalf shall have the same effect as acts of our own. This authorization expires on December 6, 2024 . This is to advise that we are in full compliance with the Anti-Drug Abuse Act. We, Qingdao Richmat Intelligence Technology Inc are not subject to a denial of federal benefits pursuant to Section 5301 of the Anti-Drug Act of 1988, 21 USC853a, and no party to the application is subject to a denial of federal benefits pursuant to that section. Sincerely, Qingdao Richmat Intelligence Technology Inc Signature Chongjie Yuan/Certification Engineer Typed name and Title

Qingdao Richmat Intelligence Technology Inc Reference No.2023U0196 Section 2.911(d)(7) USA Agent for Service of Process Company name: Qingdao Richmat Intelligence Technology Inc Address: NO.78 Kongquehe 4th Road, Qingdao Clothing Industry park, Jimo, Qingdao, Shandong Province Product Name: Module FCC ID: 2AJJGHJRF FRN: 0025672221 Model(s):HJRF Host Models: H158B, H158, H159 2.911(d)(7) USA Designated Agent for Service of Process We, [Qingdao Richmat Intelligence Technology Inc] (the applicant) designate [UA INTERNATIONAL INC.] NTE* for the purpose of accepting service of process on behalf of the applicant. Applicant consent: We Acknowledge our consent to accept service of process in the United States for matters related to the applicable equipment, and at the physical U.S. address and email address of the designated agent and acknowledge our acceptance of our obligation to maintain an agent for service of process in the United States for no less than one year after either the grantee has permanently terminated all marketing and importation of the applicable equipment within the U.S., or the conclusion of any Commission-related administrative or judicial proceeding involving the equipment, whichever is later. Agent obligation: We Acknowledge our obligation to accept service of process in the United States for matters related to the applicable equipment at our physical U.S. address and email address for no less than one year after either the grantee has permanently terminated all marketing and importation of the applicable equipment within the U.S., or the conclusion of any Commission-related administrative or judicial proceeding involving the equipment, whichever is later. USA Agent Applicant Company name: Company name: Qingdao Richmat UA INTERNATIONAL INC. Intelligence Technology Inc. Address: Address: NO.78 Kongquehe 4th Road, 5030 Boardwalk Dr Suite 818 Colorado Qingdao Clothing Industry park, Jimo, Springs, COLORADO 80919, USA Qingdao, Shandong Province FRN: 0033510736 FCC Grantee Code: 2AJJG Contact Name: Jessica Zhong 2.911 (d)(7)USA Agent v1.3 Qingdao Richmat Intelligence Technology Inc Reference No.2023U0196 Telephone No: - Contact Name: Chongjie Yuan Email:UA.custam ail. il: ~Telephone No: +86 15192777001 Email: ycj@richmat.com V 55 Signature: Signature:

Title: Manager Title: Certification engineer Date: 2023-12-12 Date: 2023.12.12 NOTE 1: An applicant located in the United States may designate itself as the agent for service of process. Reference; Federal Register document 2022-28263 published on 02/06/23 https :/www.federalregister. gov/documents/2023/02/06/2022-28263/protecting-against-nation al-security-threats-to-the-communications-supply-chain-through-the 2.911 (d)(7)USA Agent v1.3

(Ponyee Ufuon

Qingdao Richmat Intelligence Technology Inc Statement letter FCC ID: 2AJJGHJRF Model number of the module: HJ RF Model number of the host: HJSR79, HJSR79B, HJSR79C 1. How to install module The module (model number HJ RF) is welded on the PCB of the end product, details as follows:

The modules pin distribution is as follows:

Qingdao Richmat Intelligence Technology Inc Built-in DC-DC step-down circuit, low standby power consumption, can easily realize the wireless control of the product. The module is welded on the PCB of end product, and the new added host are HJSR79, HJSR79B and HJSR79C. The hosts are all remote controllers, the hosts function and description please refer to section 8, 9 and 10 of the manual. 2. Fulfill with EMC and RF Exposure requirements The host products HJSR79, HJSR79B and HJSR79C which built the module HJ RF inside were also evaluated EMC and RF exposure requirements. The hosts were tested to prove it meets FCC Part 15B requirements by sDoC authorization for they are taken as unintentional radiators. We confirm that no emissions exceed the limit for unintentional radiator. And the hosts only built one module HJ RF without any other transmitters in the hosts, so, they are not support simultaneous transmission for RF exposure evaluation. The host products can meet the RF exposure requirements as recorded in MPE report. 3. Others The host products HJSR79, HJSR79B and HJSR79C into module HJ RF can be installed, any other module is not approved. Typical use conditions for the module: Since the module is built in the remote controller, so, it takes as a portable device. The antenna separation distance from persons: Less than 5mm. Qingdao Richmat Intelligence Technology Inc The locations where the module may be used: the end product mainly used for the control of household electric bed products, so it is indoor use only. Any other restrictions: None. Thank you. Sincerely, By:

__________________________ ____ Chongjie Yuan____

(Signature1)

(Print name) Title:

_______Certified engineer___ Date:

_______2023-10-20___ On behalf of: Qingdao Richmat Intelligence Technology Inc

(Company Name) Telephone: ______+86 15192777001___

Qingdao Richmat Intelligence Technology Inc Request for Modular/Limited Modular Approval Date: October 26, 2023 Subject: Manufacturers Declaration for - Modular Approval

- Split Modular Approval

- Limited Modular Approval - Limited Split Modular Approval Confidentiality Request for: ______FCC ID: 2AJJGHJRF ______ 8 Basic Requirements FCC Part 15.212(a)(1) For Items Marked NO(*), the Limited Module Description Must be Filled Out on the Following Pages Modular Approval Requirement Requirement Met 1. The modular transmitter must have its own RF shielding. This is intended to ensure that the module does not have to rely upon the shielding provided by the device into which it is installed in order for all modular transmitter emissions to comply with FCC limits. It is also intended to prevent coupling between the RF circuitry of the module and any wires or circuits in the device into which the module is installed. Such coupling may result in non-compliant operation. The physical crystal and tuning capacitors may be located external to the shielded radio elements. 15.212(a)(1)(i)

- YES - NO(*) Details: The modular does not have its own RF shielding. 2. The modular transmitter must have buffered modulation/data inputs (if such inputs are provided) to ensure that the module will comply with FCC requirements under conditions of excessive data rates or over-modulation. 15.212(a)(1)(ii)

- YES - NO(*) Details: All modulation and data inputs are buffered by circuitry on the transmitter chip. 3. The modular transmitter must have its own power supply regulation on the module. This is intended to ensure that the module will comply with FCC requirements regardless of the design of the power supplying circuitry in the device into which the module is installed. 15.212(a)(1)(iii)

- YES - NO(*) Details: The module does not contain its own power supply regulation. 4. The modular transmitter must comply with the antenna and transmission system requirements of 15.203, 15.204(b), 15.204(c), 15.212(a), and 2.929(b). The antenna must either be permanently attached or employ a unique antenna coupler (at all connections between the module and the antenna, including the cable). The professional installation provision of 15.203 is not applicable to modules but can apply to limited modular approvals under paragraph 15.212(b). 15.212(a)(1)(iv)

- YES - NO(*) Details: The antenna is permanently attached. 5. The modular transmitter must be tested in a stand-alone configuration, i.e., the module must not be inside another device during testing. This is intended to demonstrate that the module is capable of complying with Part 15 emission limits regardless of the device into which it is eventually installed. Unless the transmitter module will be battery powered, it must comply with the AC line conducted requirements found in Section 15.207. AC or DC power lines and data input/output lines connected to the module must not contain ferrites, unless they will be marketed with the module (see Section 15.27(a)). The length of these lines shall be length typical of actual use or, if that length is unknown, at least 10 centimeters to insure that there is no coupling between the case of the module and supporting equipment. Any accessories, peripherals, or support equipment connected to the module during testing shall be unmodified or commercially available (see Section 15.31(i)). 15.212(a)(1)(v) Details: The test was performed on the hosts, as shown in the test setup document.

- YES - NO(*) 070920-02b Qingdao Richmat Intelligence Technology Inc Modular Approval Requirement 6. The modular transmitter must be labeled with its own FCC ID number, or use an electron display (see Requirement Met KDB Publication 784748). If using a permanently affixed label with its own FCC ID number, if the FCC ID is not visible when the module is installed inside another device, then the outside of the device into which the module is installed must also display a label referring to the enclosed module. This exterior label can use wording such as the following: Contains Transmitter Module FCC ID: XYZMODEL1 or Contains FCC ID:

XYZMODEL1. Any similar wording that expresses the same meaning may be used. The Grantee may either provide such a label, an example of which must be included in the application for equipment authorization, or, must provide adequate instructions along with the module which explain this requirement. In the latter case, a copy of these instructions must be included in the application for equipment authorization. If the modular transmitter uses an electronic display of the FCC identification number, the information must be readily accessible and visible on the modular transmitter or on the device in which it is installed. If the module is installed inside another device, then the outside of the device into which the module is installed must display a label referring to the enclosed module. This exterior label can use wording such as the following: Contains FCC certified transmitter module(s). Any similar wording that expresses the same meaning may be used. The user manual must include instructions on how to access the electronic display. A copy of these instructions must be included in the application for equipment authorization. 15.212(a)(1)(vi) Details: The module and host are labeled with its own FCC ID number.

- YES - NO(*) 7. The modular transmitter must comply with all specific rule or operating requirements applicable to the transmitter, including all the conditions provided in the integration instructions by the grantee. A copy of these instructions must be included in the application for equipment authorization. For example, there are very strict operational and timing requirements that must be met before a transmitter is authorized for operation under Section 15.231. For instance, data transmission is prohibited, except for operation under Section 15.231(e), in which case there are separate field strength level and timing requirements. Compliance with these requirements must be assured. 15.212(a)(1)(vii)

- YES - NO(*) Details: The module complies with all specific rule FCC Part 15C. Instructions to the OEM installer are provided in the installation manual filed with this application. 8. The modular transmitter must comply with any applicable RF exposure requirements. For example, FCC Rules in Sections 2.1091, 2.1093 and specific Sections of Part 15, including 15.319(i), 15.407(f), 15.253(f) and 15.255(g), require that Unlicensed PCS, UNII and millimeter wave devices perform routine environmental evaluation for RF Exposure to demonstrate compliance. In addition, spread spectrum transmitters operating under Section 15.247 are required to address RF Exposure compliance in accordance with Section 15.247(b)(4). Modular transmitters approved under other Sections of Part 15, when necessary, may also need to address certain RF Exposure concerns, typically by providing specific installation and operating instructions for users, installers and other interested parties to ensure compliance. 15.212(a)(1)(viii)

- YES - NO(*) Details: The module complies portable exclusion levels as shown in the RF exposure report with this application. 070920-02b Qingdao Richmat Intelligence Technology Inc Limited Module Description When Applicable

* If a module does NOT meet one or more of the above 8 requirements, the applicant may request Limited Modular Approval (LMA). This Limited Modular Approval (LMA) is applied with the understanding that the applicant will demonstrate and will retain control over the final installation of the device, such that compliance of the end product is always assured. The operating condition(s) for the LMA;

the module is only approved for use when installed in devices produced by grantee. A description regarding how control of the end product, into which the module will be installed, will be maintained by the applicant/manufacturer, such that full compliance of the end product is always ensured should be provided here. Details: The modular does not have its own RF shielding and does not contain its own power supply regulation. Software Considerations KDB 594280 / KDB 442812 (One of the following 2 items must be applied) Requirement 1. For non-Software Defined Radio transmitter modules where software is used to ensure compliance of the device, technical description must be provided about how such control is implemented to ensure prevention of third-party modification; see KDB Publication 594280. Requirement Met

- Provided in Separate Cover Letter

- N/A Details: <example The firmware of the device can not be modified or adjusted by the end user as described in a separate cover letter filed with this application. >

2. For Software Defined Radio (SDR) devices, transmitter module applications must provide a software security description; see KDB Publication 442812.

- Provided in Separate Cover Letter

- N/A Details: <example N/A>

Split Modular Requirements Requirement Provided in Manual 1. For split modular transmitters, specific descriptions for secure communications between front-end and control sections, including authentication and restrictions on third-party modifications; also, instructions to third-party integrators on how control is maintained.

- Provided in Separate Cover Letter

- N/A Details: <example N/A >

070920-02b Qingdao Richmat Intelligence Technology Inc OEM Integration Manual Guidance KDB 996369 D03 Section 2 Clear and Specific Instructions Describing the Conditions, Limitations, and Procedures for third-parties to use and/or integrate the module into a host device. Requirement Is this module intended for sale to third parties?

- YES

- No, If No, and LMA applies, the applicant can optionally choose to not make the following detailed info public. However there still needs to be basic integration instructions for a users manual and the information below must still be included in the operational description. If the applicant wishes to keep this info confidential, this will require a separate statement cover letter explaining the module is not for sale to third parties and that integration instructions are internal confidential documents. Items required to be in the manual See KDB 996369 D03, Section 2 As of May 1, 2019, the FCC requires ALL the following information to be in the installation manual. Modular transmitter applicants should include information in their instructions for all these items indicating clearly when they are not applicable. For example information on trace antenna design could indicate Not Applicable. Also if a module is limited to only a grantees own products and not intended for sale to third parties, the user instructions may not need to be detailed and the following items can be placed in the operational description, but this should include a cover letter as cited above. 1. List of applicable FCC rules. KDB 996369 D03, Section 2.2 a. Only list rules related to the transmitter. 2. Summarize the specific operational use conditions. KDB 996369 D03, Section 2.3 a. Conditions such as limits on antennas, cable loss, reduction of power for point to point 3. Limited Module Procedures. KDB 996369 D03, Section 2.4 systems, professional installation info a. Describe alternative means that the grantee uses to verify the host meets the necessary limiting conditions b. When RF exposure evaluation is necessary, state how control will be maintained such that compliance is ensured, such as Class II for new hosts, etc. 4. Trace antenna designs. KDB 996369 D03, Section 2.5 a. Layout of trace design, parts list, antenna, connectors, isolation requirements, tests for design verification, and production test procedures for ensuring compliance. If confidential, the method used to keep confidential must be identified and information provided in the operational description. 5. RF exposure considerations. KDB 996369 D03, Section 2.6 a. Clearly and explicitly state conditions that allow host manufacturers to use the module. Two types of instructions are necessary: first to the host manufacturer to define conditions (mobile, portable xx cm from body) and second additional text needed to be provided to the end user in the host product manuals. 6. Antennas. KDB 996369 D03, Section 2.7 a. List of antennas included in the application and all applicable professional installer instructions when applicable. The antenna list shall also identify the antenna types

(monopole, PIFA, dipole, etc note that omni-directional is not considered a type) 7. Label and compliance information. KDB 996369 D03, Section 2.8 a. Advice to host integrators that they need to provide a physical or e-label stating Contains FCC ID: with their finished product 8. Information on test modes and additional testing requirements. KDB 996369 D03, Section 2.9 a. Test modes that should be taken into consideration by host integrators including clarifications necessary for stand-alone and simultaneous configurations. b. Provide information on how to configure test modes for evaluation 9. Additional testing, Part 15 Subpart B disclaimer. KDB 996369 D03, Section 2.10

- All Items shown to the left are provided in the Modular Integration Guide (or UM) for Full Modular Approval (MA) or LMA.

- An LMA applies and is approved ONLY for use by the grantee in their own products, and not intended for sale to 3rd parties as provided in a separate cover letter. Therefore the information shown to the left is found in the theory of operation. Sincerely, By:

(Signature/Title1) _________ Chongjie Yuan _______________

(Print name) 1 - Must be signed by applicant contact given for applicant on the FCC site, or by the authorized agent if an appropriate authorized agent letter has been provided. Letters should be placed on appropriate letterhead. 070920-02b

Qingdao Richmat Intelligence Technology Inc Authority to Act as Agent Date: September 16, 2023 American Certification Body, Inc. 313 Park Avenue Suite 300 Falls Church, VA 22046 To Whom It May Concern:

______Intertek Testing Service Shanghai______ is authorized to act on our behalf, until otherwise notified, for applications to American Certification Body, Inc. (ACB). We certify that we are not subject to denial of federal benefits, that includes FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C. 862. Further, no party, as defined in 47 CFR 1.2002 (b), to the application is subject to denial of federal benefits, that includes FCC benefits. We also declare that the information provided to the FCC is true and correct to the best of our knowledge (47 CFR 2.911(d)) and we have been informed of the grantee responsibilities (47 CFR 2.909) with regard to certified equipment. Thank you, Agency Agreement Expiration Date: ____September 15, 2024_____ By:

(Signature1) __________ Chongjie Yuan ___________

(Print name) Title:

__________ Certified engineer ___________ On behalf of: ___________ Qingdao Richmat Intelligence Technology Inc_________

(Company Name) Telephone:

_________+86 15192777001______________ 1 - Must be signed by applicant contact given for applicant on the FCC site, or by the authorized agent if an appropriate authorized agent letter has been provided. Letters should be placed on appropriate letterhead. 050222-17

Qingdao Richmat Intelligence Technology Inc Request for Class II Permissive Change FCC ID: 2AJJGHJRF Data: September 16, 2023 TO: Federal Communication Commission Please be notified that we, the undersigned, Qingdao Richmat Intelligence Technology Inc declare that the reasons for this Class II permissive change are as below:

1. This change is based on FCC ID: 2AJJGHJRF granted on Feb 21, 2021. 2. Add 3 models of hosts. The new models of hosts are HJSR79, HJSR79B, HJSR79C. Thank you. Sincerely, By:

__________________________ ____ Chongjie Yuan____

(Signature1)

(Print name) Title:

_______Certified engineer___ On behalf of: Qingdao Richmat Intelligence Technology Inc

(Company Name) Telephone: ______+86 15192777001___

U.S. Agent Designation for Service of Process

(Applicant and U.S. Agent are Separate Parties) TO: American Certification Body, Inc. 313 Park Avenue Suite 300 Falls Church, VA 22046 ATTENTION: FCC Certification Section 2.911(d)(7) Information Designated U.S. Agent Company Name:FCC US Agent, LLC FRN:0033402884 Contact Name:Tim Payne Street Address:3722 Illinois Avenue City/Province/Zip:Saint Charles, IL, 60174 Telephone No:708-571-3148 Email:Support@FCCUSAgent.com This letter is to confirm that we (the Designated U.S. Agent) have accepted the responsibility to act as the Designated U.S. Agent for Service of Process as required by section 47 CFR 2.911(d)(7) on behalf of the Applicant noted below. U.S. Agent Signature:

Date: 2023-09-28 Signed by (Printed Name/Title):Tim Payne/Manager The Applicant acknowledges that they must maintain an agent for no less than one year after terminating all marketing and importation OR the conclusion of any Commission-related proceeding involving the equipment. The applicant further acknowledges their responsibility to inform the FCC whenever the Designated U.S. Agent information above changes. Applicant Company name:Qingdao Richmat Intelligence Technology Inc Grantee Code:2AJJG FCC ID: 2AJJGHJRF FRN:0025672221 Contact Name:Chongjie Yuan Street Address:NO.78 Kongquehe 4th Road, Qingdao Clothing Industry park City/Province/Zip:Qingdao, Shandong Province, China Telephone No: +86 15192777001 Email:ycj@richmat.com Applicant Signature1:

Date: September 14, 2023 Signed by (Printed Name/Title):ChongjieYuan/Certifiedengineer 1 - Letters should be placed on appropriate letterhead.

Qingdao Richmat Intelligence Technology Inc Certification Application Attestation Statements Date: October 8, 2023 American Certification Body, Inc. 313 Park Avenue Suite 300 Falls Church, VA 22046 To Whom It May Concern:

Statement for 47 CFR section 2.911(d)(5)(i) ______(Qingdao Richmat Intelligence Technology Inc)______ certifies that as of the date of the application the equipment for which authorization is sought is not covered equipment 1 prohibited from receiving an equipment authorization pursuant to section 2.903 of the FCC rules. If the equipment for which the applicant seeks authorization is produced by any of the entities identified on the current Covered List, including affiliates or subsidiaries of the named companies, the applicant must include an explanation on why the equipment is not covered equipment. Additional Explanation: <N/A>

Statement for 47 CFR section 2.911(d)(5)(ii) ______(Qingdao Richmat Intelligence Technology Inc)______ (the applicant) certifies that, as of the date of the filing of this application, the applicant identified on the Covered List as an entity producing covered equipment.

- is not

- is /

Thank you, By:

__________________________ ______ Chongjie Yuan__________

(Signature2)

(Print name) Title:

_________ Certified engineer _________ Company:

_________ Qingdao Richmat Intelligence Technology Inc ______________ Telephone:

_________+86 15192777001________________ 1 - The Commissions Covered List is published by the Public Safety and Homeland Security Bureau and posted on the Commissions website. This Covered List, which is periodically updated, identifies particular equipment, produced by particular entities, that constitutes covered equipment. https://www.fcc.gov/supplychain/coveredlist . 2 - Letters must be placed on appropriate letterhead. 041023-17 rev 7

Qingdao Richmat Intelligence Technology Inc Request for Modular/Limited Modular Approval Date: January 3, 2023 Subject: Manufacturers Declaration for - Modular Approval

- Split Modular Approval

- Limited Modular Approval - Limited Split Modular Approval Confidentiality Request for: ______FCC ID: 2AJJGHJRF______ 8 Basic Requirements FCC Part 15.212(a)(1) For Items Marked NO(*), the Limited Module Description Must be Filled Out on the Following Pages Modular Approval Requirement Requirement Met 1. The modular transmitter must have its own RF shielding. This is intended to ensure that the module does not have to rely upon the shielding provided by the device into which it is installed in order for all modular transmitter emissions to comply with FCC limits. It is also intended to prevent coupling between the RF circuitry of the module and any wires or circuits in the device into which the module is installed. Such coupling may result in non-compliant operation. The physical crystal and tuning capacitors may be located external to the shielded radio elements. 15.212(a)(1)(i)

- YES - NO(*) Details: The module has no shielding. 2. The modular transmitter must have buffered modulation/data inputs (if such inputs are provided) to ensure that the module will comply with FCC requirements under conditions of excessive data rates or over-modulation. 15.212(a)(1)(ii)

- YES - NO(*) Details: All modulation and data inputs are buffered by circuitry on the transmitter chip U1, as is shown in the schematic. 3. The modular transmitter must have its own power supply regulation on the module. This is intended to ensure that the module will comply with FCC requirements regardless of the design of the power supplying circuitry in the device into which the module is installed. 15.212(a)(1)(iii)

- YES - NO(*) Details: The module doesnt contains its own power supply regulation. 4. The modular transmitter must comply with the antenna and transmission system requirements of 15.203, 15.204(b), 15.204(c), 15.212(a), and 2.929(b). The antenna must either be permanently attached or employ a unique antenna coupler (at all connections between the module and the antenna, including the cable). The professional installation provision of 15.203 is not applicable to modules but can apply to limited modular approvals under paragraph 15.212(b). 15.212(a)(1)(iv)

- YES - NO(*) Details: The module connects to permanently attached antenna. 5. The modular transmitter must be tested in a stand-alone configuration, i.e., the module must not be inside another device during testing. This is intended to demonstrate that the module is capable of complying with Part 15 emission limits regardless of the device into which it is eventually installed. Unless the transmitter module will be battery powered, it must comply with the AC line conducted requirements found in Section 15.207. AC or DC power lines and data input/output lines connected to the module must not contain ferrites, unless they will be marketed with the module (see Section 15.27(a)). The length of these lines shall be length typical of actual use or, if that length is unknown, at least 10 centimeters to insure that there is no coupling between the case of the module and supporting equipment. Any accessories, peripherals, or support equipment connected to the module during testing shall be unmodified or commercially available (see Section 15.31(i)). 15.212(a)(1)(v)

- YES - NO(*) Details: The module was tested in the hosts as shown in test setup photographs filed with this application. 070920-02b Qingdao Richmat Intelligence Technology Inc Modular Approval Requirement 6. The modular transmitter must be labeled with its own FCC ID number, or use an electron display (see Requirement Met KDB Publication 784748). If using a permanently affixed label with its own FCC ID number, if the FCC ID is not visible when the module is installed inside another device, then the outside of the device into which the module is installed must also display a label referring to the enclosed module. This exterior label can use wording such as the following: Contains Transmitter Module FCC ID: XYZMODEL1 or Contains FCC ID:

XYZMODEL1. Any similar wording that expresses the same meaning may be used. The Grantee may either provide such a label, an example of which must be included in the application for equipment authorization, or, must provide adequate instructions along with the module which explain this requirement. In the latter case, a copy of these instructions must be included in the application for equipment authorization. If the modular transmitter uses an electronic display of the FCC identification number, the information must be readily accessible and visible on the modular transmitter or on the device in which it is installed. If the module is installed inside another device, then the outside of the device into which the module is installed must display a label referring to the enclosed module. This exterior label can use wording such as the following: Contains FCC certified transmitter module(s). Any similar wording that expresses the same meaning may be used. The user manual must include instructions on how to access the electronic display. A copy of these instructions must be included in the application for equipment authorization. 15.212(a)(1)(vi)

- YES - NO(*) Details: There is a label on the module as shown in the labeling exhibit filed with this application. Host specific labeling instructions are shown in the installation manual .filed with this application. 7. The modular transmitter must comply with all specific rule or operating requirements applicable to the transmitter, including all the conditions provided in the integration instructions by the grantee. A copy of these instructions must be included in the application for equipment authorization. For example, there are very strict operational and timing requirements that must be met before a transmitter is authorized for operation under Section 15.231. For instance, data transmission is prohibited, except for operation under Section 15.231(e), in which case there are separate field strength level and timing requirements. Compliance with these requirements must be assured. 15.212(a)(1)(vii)

- YES - NO(*) Details: The module complies with FCC Part 15C requirements. Instructions to the OEM installer are provided in the installation manual filed with this application. 8. The modular transmitter must comply with any applicable RF exposure requirements. For example, FCC Rules in Sections 2.1091, 2.1093 and specific Sections of Part 15, including 15.319(i), 15.407(f), 15.253(f) and 15.255(g), require that Unlicensed PCS, UNII and millimeter wave devices perform routine environmental evaluation for RF Exposure to demonstrate compliance. In addition, spread spectrum transmitters operating under Section 15.247 are required to address RF Exposure compliance in accordance with Section 15.247(b)(4). Modular transmitters approved under other Sections of Part 15, when necessary, may also need to address certain RF Exposure concerns, typically by providing specific installation and operating instructions for users, installers and other interested parties to ensure compliance. 15.212(a)(1)(viii)

- YES - NO(*) Details: The module meets Portable exclusion levels as shown in the RF exposure report with this application. 070920-02b Qingdao Richmat Intelligence Technology Inc Limited Module Description When Applicable

* If a module does NOT meet one or more of the above 8 requirements, the applicant may request Limited Modular Approval (LMA). This Limited Modular Approval (LMA) is applied with the understanding that the applicant will demonstrate and will retain control over the final installation of the device, such that compliance of the end product is always assured. The operating condition(s) for the LMA;

the module is only approved for use when installed in devices produced by grantee. A description regarding how control of the end product, into which the module will be installed, will be maintained by the applicant/manufacturer, such that full compliance of the end product is always ensured should be provided here. Details: The Module is limited to manufacturer's host devices only. Software Considerations KDB 594280 / KDB 442812 (One of the following 2 items must be applied) Requirement 1. For non-Software Defined Radio transmitter modules where software is used to ensure compliance of the device, technical description must be provided about how such control is implemented to ensure prevention of third-party modification; see KDB Publication 594280. Requirement Met

- Provided in Separate Cover Letter

- N/A Details: <example The firmware of the device can not be modified or adjusted by the end user as described in a separate cover letter filed with this application. >

2. For Software Defined Radio (SDR) devices, transmitter module applications must provide a software security description; see KDB Publication 442812.

- Provided in Separate Cover Letter

- N/A Details: <example N/A>

Split Modular Requirements Requirement Provided in Manual 1. For split modular transmitters, specific descriptions for secure communications between front-end and control sections, including authentication and restrictions on third-party modifications; also, instructions to third-party integrators on how control is maintained.

- Provided in Separate Cover Letter

- N/A Details: <example N/A >

070920-02b Qingdao Richmat Intelligence Technology Inc OEM Integration Manual Guidance KDB 996369 D03 Section 2 Clear and Specific Instructions Describing the Conditions, Limitations, and Procedures for third-parties to use and/or integrate the module into a host device. Requirement Is this module intended for sale to third parties?

- YES

- No, If No, and LMA applies, the applicant can optionally choose to not make the following detailed info public. However there still needs to be basic integration instructions for a users manual and the information below must still be included in the operational description. If the applicant wishes to keep this info confidential, this will require a separate statement cover letter explaining the module is not for sale to third parties and that integration instructions are internal confidential documents. Items required to be in the manual See KDB 996369 D03, Section 2 As of May 1, 2019, the FCC requires ALL the following information to be in the installation manual. Modular transmitter applicants should include information in their instructions for all these items indicating clearly when they are not applicable. For example information on trace antenna design could indicate Not Applicable. Also if a module is limited to only a grantees own products and not intended for sale to third parties, the user instructions may not need to be detailed and the following items can be placed in the operational description, but this should include a cover letter as cited above. 1. List of applicable FCC rules. KDB 996369 D03, Section 2.2 a. Only list rules related to the transmitter. 2. Summarize the specific operational use conditions. KDB 996369 D03, Section 2.3 a. Conditions such as limits on antennas, cable loss, reduction of power for point to point 3. Limited Module Procedures. KDB 996369 D03, Section 2.4 systems, professional installation info a. Describe alternative means that the grantee uses to verify the host meets the necessary limiting conditions b. When RF exposure evaluation is necessary, state how control will be maintained such that compliance is ensured, such as Class II for new hosts, etc. 4. Trace antenna designs. KDB 996369 D03, Section 2.5 a. Layout of trace design, parts list, antenna, connectors, isolation requirements, tests for design verification, and production test procedures for ensuring compliance. If confidential, the method used to keep confidential must be identified and information provided in the operational description. 5. RF exposure considerations. KDB 996369 D03, Section 2.6 a. Clearly and explicitly state conditions that allow host manufacturers to use the module. Two types of instructions are necessary: first to the host manufacturer to define conditions (mobile, portable xx cm from body) and second additional text needed to be provided to the end user in the host product manuals. 6. Antennas. KDB 996369 D03, Section 2.7 a. List of antennas included in the application and all applicable professional installer instructions when applicable. The antenna list shall also identify the antenna types

(monopole, PIFA, dipole, etc note that omni-directional is not considered a type) 7. Label and compliance information. KDB 996369 D03, Section 2.8 a. Advice to host integrators that they need to provide a physical or e-label stating Contains FCC ID: with their finished product 8. Information on test modes and additional testing requirements. KDB 996369 D03, Section 2.9 a. Test modes that should be taken into consideration by host integrators including clarifications necessary for stand-alone and simultaneous configurations. b. Provide information on how to configure test modes for evaluation 9. Additional testing, Part 15 Subpart B disclaimer. KDB 996369 D03, Section 2.10

- All Items shown to the left are provided in the Modular Integration Guide (or UM) for Full Modular Approval (MA) or LMA.

- An LMA applies and is approved ONLY for use by the grantee in their own products, and not intended for sale to 3rd parties as provided in a separate cover letter. Therefore the information shown to the left is found in the theory of operation. Sincerely, By:

(Signature/Title1) __________ _____ Chongjie Yuan______

(Print name) 1 - Must be signed by applicant contact given for applicant on the FCC site, or by the authorized agent if an appropriate authorized agent letter has been provided. Letters should be placed on appropriate letterhead. 070920-02b

Qingdao Richmat Intelligence Technology Inc Request for Class II Permissive Change FCC ID: 2AJJGHJRF Data: December 26, 2022 TO: Federal Communication Commission Please be notified that we, the undersigned, Qingdao Richmat Intelligence Technology Inc declare that the reasons for this Class II permissive change are as below:

1. This change is based on FCC ID: 2AJJGHJRF granted on Feb 21, 2021. 2. Add 2 models of hosts. The new models of hosts are HJH103, HJH13D. all hosts has been tested for Radiated Emission, this test results can prove that the LMA installed in the hosts can also comply with FCC transmitter emissions limits. The hosts are powered by the battery only, so it is no need to comply with the AC line conducted requirements found in Section 15.207. Thank you. Sincerely, By:

__________________________ ____ Chongjie Yuan____

(Signature1)

(Print name) Title:

_______Certified engineer___ On behalf of: Qingdao Richmat Intelligence Technology Inc

(Company Name) Telephone: ______+86 15192777001___

Qingdao Richmat Intelligence Technology Inc Authority to Act as Agent Date: _2022.01.10_ American Certification Body, Inc. 6731 Whittier Avenue Suite C110 McLean, VA 22101 To Whom It May Concern:

______Intertek Testing Services Shanghai______ is authorized to act on our behalf, until otherwise notified, for applications to American Certification Body, Inc. (ACB). We certify that we are not subject to denial of federal benefits, that includes FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C. 862. Further, no party, as defined in 47 CFR 1.2002 (b), to the application is subject to denial of federal benefits, that includes FCC benefits. Thank you, Agency Agreement Expiration Date: _____2023.01.09 _____ By:

Title:

On behalf of: _Qingdao Richmat Intelligence Technology Inc

(Company Name) Telephone:

__________________________ ____Chongjie Yuan ____

(Print name) _______Certified Engineer___ _____+86 532 88597798___

(Signature1) 1 - Must be signed by applicant contact given for applicant on the FCC site, or by the authorized agent if an appropriate authorized agent letter has been provided. Letters should be placed on appropriate letterhead.

Qingdao Richmat Intelligence Technology Inc Request for Class II Permissive Change Data: January 10, 2022 FCC ID: 2AJJGHJRF TO: Federal Communication Commission Please be notified that we, the undersigned, Qingdao Richmat Intelligence Technology Inc declare that the reasons for this Class II permissive change are as below:

1. This change is based on FCC ID: 2AJJGHJRF granted on Feb 21, 2. Add 1 models of hosts. The new models of hosts are HJH104. 2021. __________________________ Thank you. Sincerely, By:

Title:

On behalf of: Qingdao Richmat Intelligence Technology Inc Telephone: ______+86 15192777001___ _______Certified engineer___

(Company Name)

(Signature1) ____ Chongjie Yuan____

(Print name)

Qingdao Richmat Intelligence Technology Inc Request for Modular/Limited Modular Approval Date: February 19, 2021 Subject: Manufacturers Declaration for - Modular Approval Confidentiality Request for: ______FCC ID: 2AJJGHJRF______

- Limited Modular Approval - Limited Split Modular Approval

- Split Modular Approval For Items Marked NO(*), the Limited Module Description Must be Filled Out on the Following Pages Modular Approval Requirement Requirement Met 8 Basic Requirements FCC Part 15.212(a)(1) 1. The modular transmitter must have its own RF shielding. This is intended to ensure that the module does not have to rely upon the shielding provided by the device into which it is installed in order for all modular transmitter emissions to comply with FCC limits. It is also intended to prevent coupling between the RF circuitry of the module and any wires or circuits in the device into which the module is installed. Such coupling may result in non-compliant operation. The physical crystal and tuning capacitors may be located external to the shielded radio elements. 15.212(a)(1)(i) Details: The module has no shielding.

- YES - NO(*) 2. The modular transmitter must have buffered modulation/data inputs (if such inputs are provided) to ensure that the module will comply with FCC requirements under conditions of excessive data rates or over-modulation. 15.212(a)(1)(ii) Details: All modulation and data inputs are buffered by circuitry on the transmitter chip U1, as is shown in the schematic.

- YES - NO(*) 3. The modular transmitter must have its own power supply regulation on the module. This is intended to ensure that the module will comply with FCC requirements regardless of the design of the power supplying circuitry in the device into which the module is installed. 15.212(a)(1)(iii) Details: The module doesnt contains its own power supply regulation. 4. The modular transmitter must comply with the antenna and transmission system requirements of 15.203, 15.204(b), 15.204(c), 15.212(a), and 2.929(b). The antenna must either be permanently attached or employ a unique antenna coupler (at all connections between the module and the antenna, including the cable). The professional installation provision of 15.203 is not applicable to modules but can apply to limited modular approvals under paragraph 15.212(b). 15.212(a)(1)(iv) Details: The module connects to permanently attached antenna.

- YES - NO(*)

- YES - NO(*) 5. The modular transmitter must be tested in a stand-alone configuration, i.e., the module must not be inside another device during testing. This is intended to demonstrate that the module is capable of complying with Part 15 emission limits regardless of the device into which it is eventually installed. Unless the transmitter module will be battery powered, it must comply with the AC line conducted requirements found in Section 15.207. AC or DC power lines and data input/output lines connected to the module must not contain ferrites, unless they will be marketed with the module (see Section 15.27(a)). The length of these lines shall be length typical of actual use or, if that length is unknown, at least 10 centimeters to insure that there is no coupling between the case of the module and supporting equipment. Any accessories, peripherals, or support equipment connected to the module during testing shall be unmodified or commercially available (see Section 15.31(i)). 15.212(a)(1)(v) Details: The module was tested in the hosts as shown in test setup photographs filed with this application.

- YES - NO(*) 053019-02a Qingdao Richmat Intelligence Technology Inc 6. The modular transmitter must be labeled with its own FCC ID number, or use an electron display (see Modular Approval Requirement Requirement Met KDB Publication 784748). If using a permanently affixed label with its own FCC ID number, if the FCC ID is not visible when the module is installed inside another device, then the outside of the device into which the module is installed must also display a label referring to the enclosed module. This exterior label can use wording such as the following: Contains Transmitter Module FCC ID: XYZMODEL1 or Contains FCC ID:

XYZMODEL1. Any similar wording that expresses the same meaning may be used. The Grantee may either provide such a label, an example of which must be included in the application for equipment authorization, or, must provide adequate instructions along with the module which explain this requirement. In the latter case, a copy of these instructions must be included in the application for equipment authorization. If the modular transmitter uses an electronic display of the FCC identification number, the information must be readily accessible and visible on the modular transmitter or on the device in which it is installed. If the module is installed inside another device, then the outside of the device into which the module is installed must display a label referring to the enclosed module. This exterior label can use wording such as the following: Contains FCC certified transmitter module(s). Any similar wording that expresses the same meaning may be used. The user manual must include instructions on how to access the electronic display. A copy of these instructions must be included in the application for equipment authorization. 15.212(a)(1)(vi) Details: There is a label on the module as shown in the labeling exhibit filed with this application. Host specific labeling instructions are shown in the installation manual .filed with this application.

- YES - NO(*) 7. The modular transmitter must comply with all specific rule or operating requirements applicable to the transmitter, including all the conditions provided in the integration instructions by the grantee. A copy of these instructions must be included in the application for equipment authorization. For example, there are very strict operational and timing requirements that must be met before a transmitter is authorized for operation under Section 15.231. For instance, data transmission is prohibited, except for operation under Section 15.231(e), in which case there are separate field strength level and timing requirements. Compliance with these requirements must be assured. 15.212(a)(1)(vii) Details: The module complies with FCC Part 15C requirements. Instructions to the OEM installer are provided in the installation manual filed with this application.

- YES - NO(*) 8. The modular transmitter must comply with any applicable RF exposure requirements. For example, FCC Rules in Sections 2.1091, 2.1093 and specific Sections of Part 15, including 15.319(i), 15.407(f), 15.253(f) and 15.255(g), require that Unlicensed PCS, UNII and millimeter wave devices perform routine environmental evaluation for RF Exposure to demonstrate compliance. In addition, spread spectrum transmitters operating under Section 15.247 are required to address RF Exposure compliance in accordance with Section 15.247(b)(4). Modular transmitters approved under other Sections of Part 15, when necessary, may also need to address certain RF Exposure concerns, typically by providing specific installation and operating instructions for users, installers and other interested parties to ensure compliance. 15.212(a)(1)(viii) Details: The module meets Portable exclusion levels as shown in the RF exposure information filed with this application.

- YES - NO(*) 053019-02a Qingdao Richmat Intelligence Technology Inc Limited Module Description When Applicable

* If a module does NOT meet one or more of the above 8 requirements, the applicant may request Limited Modular Approval (LMA). This Limited Modular Approval (LMA) is applied with the understanding that the applicant will demonstrate and will retain control over the final installation of the device, such that compliance of the end product is always assured. The operating condition(s) for the LMA;

the module is only approved for use when installed in devices produced by grantee. A description regarding how control of the end product, into which the module will be installed, will be maintained by the applicant/manufacturer, such that full compliance of the end product is always ensured should be provided here. Details: The Module is limited to manufacturer's host devices only. Software Considerations KDB 594280 / KDB 442812 (One of the following 2 items must be applied) Requirement Requirement Met 1. For non-Software Defined Radio transmitter modules where software is used to ensure compliance of the device, technical description must be provided about how such control is implemented to ensure prevention of third-party modification; see KDB Publication 594280. Details: <example N/A>

- Provided in Separate Cover Letter

- N/A 2. For Software Defined Radio (SDR) devices, transmitter module applications must provide a software security description; see KDB Publication 442812.

- Provided in Separate Cover Letter

- N/A Details: <example N/A>

Split Modular Requirements Requirement Provided in Manual 1. For split modular transmitters, specific descriptions for secure communications between front-end and control sections, including authentication and restrictions on third-party modifications; also, instructions to third-party integrators on how control is maintained. Details: <example N/A >

- Provided in Separate Cover Letter

- N/A 053019-02a Qingdao Richmat Intelligence Technology Inc OEM Integration Manual Guidance KDB 996369 D03 Section 2 Clear and Specific Instructions Describing the Conditions, Limitations, and Procedures for third-parties to use and/or integrate the module into a host device. Requirement Is this module intended for sale to third parties?

- YES

- No, If No, and LMA applies, the applicant can optionally choose to not make the following detailed info public. However there still needs to be basic integration instructions for a users manual and the information below must still be included in the operational description. If the applicant wishes to keep this info confidential, this will require a separate statement cover letter explaining the module is not for sale to third parties and that integration instructions are internal confidential documents. Items required to be in the manual See KDB 996369 D03, Section 2 As of May 1, 2019, the FCC requires ALL the following information to be in the installation manual. Modular transmitter applicants should include information in their instructions for all these items indicating clearly when they are not applicable. For example information on trace antenna design could indicate Not Applicable. Also if a module is limited to only a grantees own products and not intended for sale to third parties, the user instructions may not need to be detailed and the following items can be placed in the operational description, but this should include a cover letter as cited above. 1. List of applicable FCC rules. KDB 996369 D03, Section 2.2 a. Only list rules related to the transmitter. 2. Summarize the specific operational use conditions. KDB 996369 D03, Section 2.3 a. Conditions such as limits on antennas, cable loss, reduction of power for point to point 3. Limited Module Procedures. KDB 996369 D03, Section 2.4 systems, professional installation info a. Describe alternative means that the grantee uses to verify the host meets the necessary limiting conditions b. When RF exposure evaluation is necessary, state how control will be maintained such that compliance is ensured, such as Class II for new hosts, etc. 4. Trace antenna designs. KDB 996369 D03, Section 2.5 a. Layout of trace design, parts list, antenna, connectors, isolation requirements, tests for design verification, and production test procedures for ensuring compliance. If confidential, the method used to keep confidential must be identified and information provided in the operational description. 5. RF exposure considerations. KDB 996369 D03, Section 2.6 a. Clearly and explicitly state conditions that allow host manufacturers to use the module. Two types of instructions are necessary: first to the host manufacturer to define conditions (mobile, portable xx cm from body) and second additional text needed to be provided to the end user in the host product manuals. 6. Antennas. KDB 996369 D03, Section 2.7 a. List of antennas included in the application and all applicable professional installer instructions when applicable. The antenna list shall also identify the antenna types

(monopole, PIFA, dipole, etc note that omni-directional is not considered a type) 7. Label and compliance information. KDB 996369 D03, Section 2.8 a. Advice to host integrators that they need to provide a physical or e-label stating Contains FCC ID: with their finished product 8. Information on test modes and additional testing requirements. KDB 996369 D03, Section 2.9 a. Test modes that should be taken into consideration by host integrators including clarifications necessary for stand-alone and simultaneous configurations. b. Provide information on how to configure test modes for evaluation 9. Additional testing, Part 15 Subpart B disclaimer. KDB 996369 D03, Section 2.10

- All Items shown to the left are provided in the Modular Integration Guide (or UM) for Full Modular Approval (MA) or LMA.

- An LMA applies and is approved ONLY for use by the grantee in their own products, and not intended for sale to 3rd parties as provided in a separate cover letter. Therefore the information shown to the left is found in the theory of operation. Sincerely, By:

053019-02a __________________________

(Signature/Title1) ____Chongjie Yuan _____

(Print name) 1 - Must be signed by applicant contact given for applicant on the FCC site, or by the authorized agent if an appropriate authorized agent letter has been provided. Letters should be placed on appropriate letterhead.

Qingdao Richmat Intelligence Technology Inc Request for Confidentiality Date: __2021.1.26______ Subject: Confidentiality Request for: ______2AJJGHJRF______ Pursuant to FCC 47 CFR 0.457(d) and 0.459 and IC RSP-100, Section 9.4, the applicant requests that a part of the subject FCC application be held confidential. Type of Confidentiality Requested Short Term Short Term Short Term Short Term Short Term Short Term Short Term Short Term Short Term Permanent Permanent *1 Permanent Permanent Permanent Permanent Permanent *3 Exhibit Block Diagrams External Photos Internal Photos Operation Description/Theory of Operation Parts List & Placement/BOM Tune-Up Procedure Schematics Test Setup Photos Users Manual _____ Qingdao Richmat Intelligence Technology Inc _____ has spent substantial effort in developing this product and it is one of the first of its kind in industry. Having the subject information easily available to "competition" would negate the advantage they have achieved by developing this product. Not protecting the details of the design will result in financial hardship. Permanent Confidentiality:

The applicant requests the exhibits listed above as permanently confidential be permanently withheld from public review due to materials that contain trade secrets and proprietary information not customarily released to the public. Short-Term Confidentiality:

The applicant requests the exhibits selected above as short term confidential be withheld from public view for a period of ___(specify number of days not to exceed 180)2___ days from the date of the Grant of Equipment Authorization and prior to marketing. This is to avoid premature release of sensitive information prior to marketing or release of the product to the public. Applicant is also aware that they are responsible to notify ACB in the event information regarding the product or the product is made available to the public before the requested period has expired. ACB will then release the documents listed above for public disclosure pursuant to FCC Public Notice DA 04-1705. Sincerely, By:

(Signature/Title3) ___Chongjie Yuan_________

(Print name) 1 - The asterisked items (*) require further information to be provided to ACB before permanent confidentiality will be extended to these exhibits. Please refer to FCC KDB 726920 and the specific Document link for D01 found at:

https://apps.fcc.gov/oetcf/kdb/forms/FTSSearchResultPage.cfm?switch=P&id=41731 and review section II, 3) regarding specific information that must accompany these requests. 2 - Please refer to http://acbcert.com/documents/misc-docs/Memo-Short-Term-Vs-Standard-Confidentiality.pdf for complete details. 3 - Must be signed by applicant contact given for applicant on the FCC site, or by the authorized agent if an appropriate authorized agent letter has been provided. Letters should be placed on appropriate letterhead.