FCC ID: 2A3ZU-SPNYL01 Spintly Wireless IOT Module

SPNYL01-X Bluetooth module datasheet SPINTLY SPNYL01-X High Efficiency 2.4GHz Wireless Module SPNYL01-P and SPNYL01-E Datasheet NAME: 2.4GHz Wireless IOT Module MODEL NO: SPNYL01-P/SPNYL01-E VERSION: P01 www.spintly.com 1 CONTENTS SPNYL01-X Bluetooth module datasheet Table of Contents 1. Product Description .......................................................................................................................................... 4 2. Key Features ...................................................................................................................................................... 4 3. Applications ....................................................................................................................................................... 4 4. Module Block Diagram ...................................................................................................................................... 5 5. Product Specifications ....................................................................................................................................... 6 6 Module Pinout and Pin Description ................................................................................................................... 8 6.1 Module Pinout ................................................................................................................................................. 8 6.2 Pin Assignment ................................................................................................................................................. 9 7. PCB Design Guide ............................................................................................................................................ 11 7.1 Layout notes ................................................................................................................................................... 11 8. Mechanical Dimensions ................................................................................................................................... 13 9. PCB Footprint and Dimensions ........................................................................................................................ 14 10. Qualification and approvals ........................................................................................................................... 15 10.1. United States (FCC) .................................................................................................................. 15 10.1.1. Labelling and user information requirements .................................................................. 15 10.1.2. RF exposure ....................................................................................................................... 15 10.2. European Union regulatory compliance .................................................................................. 15 10.2.1. Radio Equipment Directive (RED) 2014/53/EU ................................................................ 16 10.2.2. Labelling and user information requirements .................................................................. 16 11. Cautions .......................................................................................................................................................... 16 11.1 Reflow soldering ....................................................................................................................... 16 11.2 Usage Condition Notes ............................................................................................................. 17 11.3 Storage Notes ............................................................................................................................ 18 12. Package information ...................................................................................................................................... 18 12.1. Ordering information ............................................................................................................... 18 Revision History ................................................................................................................................................... 18 Antennas ...................................................................................................................................................... 19 List of applicable FCC rules ........................................................................................................................... 19 Specific operational use conditions ............................................................................................................. 19 Limited module procedures ......................................................................................................................... 19 Trace antenna designs ................................................................................................................................. 19 RF exposure considerations ......................................................................................................................... 19 Antennas ...................................................................................................................................................... 20 Label and Compliance information .............................................................................................................. 20 Information on test modes and additional testing requirements ............................................................... 20 FCC ID Location: ........................................................................................................................................... 20 www.spintly.com 2 SPNYL01-X Bluetooth module datasheet Additional testing: ........................................................................................................................................ 20 USERS MANUAL OF THE END PRODUCT: ..................................................................................................... 21 Contact Information............................................................................................................................................. 21 www.spintly.com 3 SPNYL01-X Bluetooth module datasheet 1. Product Description SPNYL01 series is a powerful, highly flexible, ultra-low power wireless module using Nordic nRF52833 SoCs made for IOT applications. It was designed for high data rate wireless communication in the 2.4GHz ISM band. With an 32bit ARM Cortex M4 MCU, available 512KB flash, 128KB RAM, embedded 2.4GHz multi-protocol transceiver. SPNYL01 series brings out all nRF52833 hardware features and capabilities including USB, up to

+8dBm transmit power, 5.5v Supply considerations and NFC tag implementation. Complete regulatory certifications enable faster time to market and reduced development risk SPNYL01 supports an extensive range of wireless protocols. It supports BLE (Bluetooth Low Energy), and is capable of Bluetooth Direction Finding in addition Long Range and 2 Mbps. Bluetooth mesh, 802.15.4, Thread, Zigbee, proprietary 2.4 GHz protocols and NFC-A are also supported. 2. Key Features Bluetooth 5 Direction Finding 2Mbps CSA#2 Advertising Extensions Long Range IEEE 802.15.4 radio support Thread Zigbee Supported data rates Bluetooth: 2 Mbps, 1 Mbps, 500 kbps, and 125 kbps Proprietary 2.4 GHz: 2 Mbps, 1 Mbps IEEE 802.15.4-2006: 250 kbps Wide supply voltage range: 1.7 V to 5.5V 518kB Flash and 128kB RAM Full set of digital interfaces including: SPI, TWI, UART, PDM, PWM, QDEC 12-bit, 200ksps ADC 128-bit AES ECB/CCM/AAR co-processor Individual power management for all peripherals On-chip DC/DC buck converter Dimension: 21.0 x 13.8 x 2.3mm (with shield) 40 GPIOs 3. Applications Internet of things (IoT) Smart home sensors and controllers Industrial IoT sensors and controllers www.spintly.com 4 SPNYL01-X Bluetooth module datasheet Advanced wearables Health/fitness sensor and monitor devices Wireless payment enabled devices Advanced computer peripherals and I/O devices Mouse Keyboard Multi-touch trackpad Interactive entertainment devices Remote controls Gaming controllers 4. Module Block Diagram Figure 1: SPNYL01 Block diagram www.spintly.com 5 5. Product Specifications Details Bluetooth Feature Security LE connections Radio Frequency Modulations Antenna SPNYL01-X Bluetooth module datasheet Description Bluetooth Low Energy Bluetooth Mesh Bluetooth Direction Finding 1M LE PHY 2M LE PHY Coded LE PHY (Long Range) Advertising Extensions CSA #2 AES-128 Concurrent central, observer, peripheral, and broadcaster roles with up to twenty concurrent connections along with one observer and one broadcaster. 2360MHz - 2500MHz GFSK at 1 Mbps/2 Mbps 250kbps (IEEE 802.15.4-2006) and Long range (125kbps and 500kbps) data rates SPNYL01-P: PCB trace antenna SPNYL01-E: External 2.4Ghz antenna 14.2mA / 9.6mA / 4.9mA / 3.8mA / 2.7mA / 2.3mA 30.4mA / 20.7mA / 10.3mA / 8.0mA / 5.5mA / 4.5mA Current Consumption TX only (DCDC enabled, 3V) @

+8dBm / +4dBm / 0dBm / -4dBm/-

20dBm/-40dBm TX only @ +8dBm / +4dBm / 0dBm

/ -4dBm / -20dBm / -40dBm RX only (DCDC enabled, 3V)

@1Msps / 1Msps BLE RX only @ 1Msps / 1Mbps BLE RX only (DCDC enabled, 3V)

@2Msps / 2Msps BLE RX only @ 2Msps / 2Mbps BLE System OFF mode3V System OFF mode with full 64kB RAM retention3V System ON mode, no RAM retention, wake on RTC3V) Mechanical Dimensions 4.6mA 9.6mA 5.2mA 10.7mA 0.6uA 1.3uA 1.5uA Package PCB material Impedance Hardware CPU Memory Length: 21mm0.2mm Width: 13.8mm0.2mm Height: 2.3mm+0.1mm/-0.15mm 34 diameters of Half-holes + 20 LGA pads FR-4 50 ARM Cortex-M4 32-bit processor with FPU, 64 MHz 512kB flash, 128kB RAM www.spintly.com 6 Interfaces Power supply Operating temperature range Clock control Power regulator SPNYL01-X Bluetooth module datasheet 4x SPI master/3x SPI slave with EasyDMA 2x I2C compatible two-wire master/slave 2x UART (CTS/RTS) with EasyDMA 3x real-time counter (RTC) 5x 32-bit timer with counter mode 4x 4-channel pulse width modulator (PWM) unit with EasyDMA 40 GPIOs 8x 12bit, 200ksps ADC Audio peripherals I 2 S, digital microphone interface (PDM) 1.7V to 5.5V

-40 to 85 C

(-40 to +105 C can be customized) 32.768 kHz +/-20 ppm crystal oscillator DC/DC regulator setup www.spintly.com 7 SPNYL01-X Bluetooth module datasheet 6 Module Pinout and Pin Description 6.1 Module Pinout Figure 2: SPNYL01 Module Pinout www.spintly.com 8 SPNYL01-X Bluetooth module datasheet 6.2 Pin Assignment Module Pin Number Module Pin Name Description 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 PO.25 P0.23 P0.03 AIN1 P0.02 AIN0 P0.28 AIN4 PO.29 AIN5 PO.30 AIN6 PO.31 AIN7 VDD GND P0.27 P0.26 P0.04 AIN2 P0.06 P0.05 AIN3 P0.08 P0.09 NFC1 P0.10 NFC2 SWDCLK SWDIO P0.07 TRACECLK PO.11 TRACEDATA[2]

PO.12 TRACEDATA[1]

PO.13 PO.14 PO.15 General Purpose I/O General Purpose I/O General Purpose I/O, SAADC/COMP/LPCOMP input General Purpose I/O, SAADC/COMP/LPCOMP input General Purpose I/O, SAADC/COMP/LPCOMP input General Purpose I/O, SAADC/COMP/LPCOMP input General Purpose I/O, SAADC/COMP/LPCOMP input General Purpose I/O, SAADC/COMP/LPCOMP input Power Supply Ground General Purpose I/O General Purpose I/O General Purpose I/O, SAADC/COMP/LPCOMP input General Purpose I/O General Purpose I/O, SAADC/COMP/LPCOMP input General Purpose I/O General purpose I/O, NFC antenna connection General purpose I/O, NFC antenna connection Serial wire debug clock input for debug and programming Serial wire debug I/O for debug and programming General Purpose I/O, Trace buffer clock General Purpose I/O, Trace buffer TRACEDATA General Purpose I/O, Trace buffer TRACEDATA General Purpose I/O General Purpose I/O General Purpose I/O www.spintly.com 9 SPNYL01-X Bluetooth module datasheet General Purpose I/O General Purpose I/O General purpose I/O, Configurable as pin reset General Purpose I/O General Purpose I/O General Purpose I/O General Purpose I/O Ground General Purpose I/O General Purpose I/O Ground Ground General Purpose I/O PO.16 PO.17 PO.18 nRESET P0.20 P0.21 P0.22 P0.24 GND P1.05 P1.03 GND GND P0.19 VDDH GND P1.08 P1.09 TRACEDATA[3]

VBUS D-

D+

High Voltage Power supply Ground General purpose I/O General Purpose I/O, Trace buffer TRACEDATA 5V input for USB 3.3v Regulator USB D-

USB D+

GND P1.00 TRACEDATA[0]/ SWO P1.01 Ground General Purpose I/O, Trace buffer TRACEDATA/ Serial Wire Output General Purpose I/O P1.02 P1.04 P1.06 P1.07 General Purpose I/O General Purpose I/O General Purpose I/O General Purpose I/O 34,35 36 27 28 29 30 31 32 33 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 www.spintly.com 10 SPNYL01-X Bluetooth module datasheet 7. PCB Design Guide 7.1 Layout notes You can refer to the following references for the mounting design of the module with on-board antenna (SPNYL01-P with PCB antenna). For external antenna modules (SP01L-E needs to connect an external antenna to the u.FL connector), you need to refer to the external antenna design requirements. Recommended module mounting example:

Please do not place any metal components in blue shaded space (*1), such as signal line and metal chassis as possible except for main board while mounting the components in *1 space on the main board is allowed except for no copper plating area (*2).

(*2) This area is routing prohibited area on the main board. Please do not place copper on any layer.

(*3) Characteristics may deteriorate when GND pattern length is less than 30mm. It should be 30 mm or more as possible. For the best Bluetooth range performance, the antenna area of module shall extend 3 mm outside the edge of main board, or 3 mm outside the edge of a ground plane. Ground plane shall be at least 5 mm from the edge of the antenna area of module. All module GND pins MUST be connected to main board GND. Place GND vias close to module GND pads as possible. Unused PCB area on surface layer can flooded with copper but place GND vias regularly to connect copper flood to inner GND plane. If GND flood copper underside the module then connects with GND vias to inner GND plane. Even when above mentioned condition is satisfied, communication performance may be significantly deteriorated depending on the structure of the product. Bluetooth range performance is degraded if a module is placed in the middle of the main board. For main board layout:

Avoid running any signal line below module whenever possible. www.spintly.com 11 SPNYL01-X Bluetooth module datasheet No ground plane below antenna. If possible, cut-off the portion of main board below antenna. www.spintly.com 12 SPNYL01-X Bluetooth module datasheet Placement of metal parts:

Minimum safe distance for metal parts without seriously compromising the antenna (tuning) is 40 mm top/bottom and 30 mm left or right. Metal close to the module antenna (bottom, top, left, right, any direction) will have degradation on the antenna performance. The amount of that degradation is entirely system dependent, meaning you will need to perform some testing with your host application. Any metal closer than 20 mm will begin to significantly degrade performance (S11, gain, radiation efficiency). It is best that you test the range with a mock-up (or actual prototype) of the product to assess effects of enclosure height (and materials, whether metal or plastic). 8. Mechanical Dimensions www.spintly.com 13 9. PCB Footprint and Dimensions SPNYL01-X Bluetooth module datasheet Figure 7: SPNYL01 PCB Footprint and Dimensions www.spintly.com 14 SPNYL01-X Bluetooth module datasheet 10. Qualification and approvals 10.1. United States (FCC) The SPNYL01-X has received Federal Communications Commission (FCC) CFR47 Telecommunications, Part 15 Subpart C Intentional Radiators modular approval in accordance with Part 15.247 Modular Transmitter approval. The modular approval allows the end user to integrate the module into a finished product without obtaining subsequent and separate FCC approvals for intentional radiation, provided no changes or modifications are made to the module circuitry. Changes or modifications could void the users authority to operate the equipment. The end user must comply with all of the instructions provided by the Grantee, which indicate installation and/or operating conditions necessary for compliance. The finished product is required to comply with all applicable FCC equipment authorizations regulations, requirements and equipment functions not associated with the transmitter module portion. For example, compliance must be demonstrated to regulations for other transmitter components within the host product; to requirements for unintentional radiators (Part 15 Subpart B Unintentional Radiators), such as digital devices, computer peripherals, radio receivers, etc.; and to additional authorization requirements for the non-transmitter functions on the transmitter module

(i.e., Verification, or Declaration of Conformity) (e.g., transmitter modules may also contain digital logic functions) as appropriate. Note:

Modification to this product will void the users authority to operate this equipment. The OEM is still responsible for verifying end product compliance with FCC Part 15, subpart B limits for unintentional radiators through an accredited test facility. 10.1.1. Labelling and user information requirements The SPNYL01-X is assigned the FCC ID number: 2A3ZU-SPNYL01 If the FCC ID is not visible when the module is installed inside another device, then the outside of the finished product into which the module is installed must also display a label referring to the enclosed module. This exterior label can use the following or similar wording:

Contains FCC ID: 2A3ZU-SPNYL01 In addition to marking the product with the appropriate FCC ID, the end product user manual may also require specific information based on the digital device classification. Refer to the FCC Rules, Title 47, Subchapter A, Part 15, Subpart B, Chapter 15.105 for specific wording of the notices. 10.1.2. RF exposure All transmitters regulated by FCC must comply with RF exposure requirements. KDB 447498 General RF Exposure Guidance provides guidance in determining whether proposed or existing transmitting facilities, operations or devices comply with limits for human exposure to Radio Frequency (RF) fields adopted by the Federal Communications Commission (FCC). This module is approved for installation into mobile and/or portable host platforms and must not be co-located or operating in conjunction with any other antenna or transmitter except in accordance with FCC multi-transmitter guidelines. End users must be provided with transmitter operating conditions for satisfying RF Exposure compliance. 10.2. European Union regulatory compliance Information about regulatory compliance of the European Union for the SPNYL01-X module is available in the SPNYL01-X Declaration of Conformity. www.spintly.com 15 SPNYL01-X Bluetooth module datasheet 10.2.1. Radio Equipment Directive (RED) 2014/53/EU The SPNYL01-X module complies with the essential requirements and other relevant provisions of Radio Equipment Directive (RED) 2014/53/EU. 10.2.2. Labelling and user information requirements The label on the final products which contain the SPNYL01-X module must follow CE marking requirements. The R&TTE Compliance 11. Cautions 11.1 Reflow soldering Reflow soldering is a vitally important step in the SMT process. The temperature curve associated with the reflow is an essential parameter to control to ensure the correct connection of parts. The parameters of certain components will also directly impact the temperature curve selected for this step in the process. The standard reflow profile has four zones: preheat, soak, reflow, cooling. The profile describes the ideal temperature curve of the top layer of the PCB. During reflow, modules should not be above 260C and not for more than 30 seconds. www.spintly.com 16 SPNYL01-X Bluetooth module datasheet Note: The module is LGA package. Please be careful of the amount of solder paste. The module may be lifted due to excess solder. 11.2 Usage Condition Notes Follow the conditions written in this specification, especially the recommended condition ratings about the power supply applied to this product. The supply voltage has to be free of AC ripple voltage (for example from a battery or a low noise regulator output). For noisy supply voltages, provide a decoupling circuit (for example a ferrite in series connection and a bypass capacitor to ground of at least 47uF directly at the module). Take measures to protect the unit against static electricity. If pulses or other transient loads (a large load applied in a short time) are applied to the products, check and evaluate their operation before assembly on the final products. The supply voltage should not be exceedingly high or reversed. It should not carry noise and/or spikes. This product away from other high frequency circuits. Keep this product away from heat. Heat is the major cause of decreasing the life of these products. Avoid assembly and use of the target equipment in conditions where the products temperature may exceed the maximum tolerance. This product should not be mechanically stressed when installed. Do not use dropped products. Do not touch, damage or soil the pins. Pressing on parts of the metal shield or fastening objects to the metal shield will cause damage. www.spintly.com 17 SPNYL01-X Bluetooth module datasheet 11.3 Storage Notes The module should not be stressed mechanically during storage. Do not store these products in the following conditions or the performance characteristics of the product, such as RF performance will be adversely affected:

Storage in salty air or in an environment with a high concentration of corrosive gas. Storage in direct sunlight Storage in an environment where the temperature may be outside the range specified. Storage of the products for more than one year after the date of delivery storage period. Keep this product away from water, poisonous gas and corrosive gas. This product should not be stressed or shocked when transported. 12. Package information Details Quantity(module) Single module Weight Dimension 12.1. Ordering information Tape and Reel 400 pcs 45.0g 23 x 16.5 x 3.2 mm (L x W x H) Model No Antenna Module SPNYL01-P SPNYL01-E SoC Flash/RAM PCB Antenna nRF52833-QIAA 512KB/128KB u.FL Connector nRF52833-QIAA 512KB/128KB Revision History Revision V1.0 Description Initial Release Author Brosnan Date 2021.10.04 www.spintly.com 18 SPNYL01-X Bluetooth module datasheet Antennas The Bluetooth Low Energy Module is an BLE Module beams signals and communicates with its antenna, which is PCB Antenna and External 2.4Ghz antenna. Antenna could not be in no-load state when module is working. During debugging, it is suggested to add 50 ohms load to the antenna port to avoid damage or performance degradation of the module under long-time no-load condition. BLE Antenna Designation: PCB antenna For Model SPNYL01-P BLE Antenna Gain: 0.15dBi For Model SPNYL01-P BLE Antenna Designation: External FPC antenna For Model SPNYL01-E BLE Antenna Gain: Max. 2.0 dBi For Model SPNYL01-E List of applicable FCC rules The Bluetooth Low Energy Module is an BLE Module with digitally modulated systems using an GFSK modulation. It operates on the 2402- 2480MHz band. Complies with FCC CFR Title 47 Part 15 Subpart C Section 15.247. Specific operational use conditions The SPNYL01-X is a BLE Module Operation Frequency: 2402 - 2480MHz Modulation Type: GFSK Number Of Channel: 40CH Antenna Designation: PCB Antenna and External 2.4Ghz FPC antenna SPNYL01-X series is a powerful, highly flexible, ultra-low power Bluetooth 5.1 module based on world-leading Nordic Semiconductor nRF52833 SoC solution, which has a 32bit Arm Cortex-M4 CPU with floating point unit running at 64MHz. MK07 series is capable of the latest and greatest features of Bluetooth 5.1, the most prominent being Direction Finding1, taking Bluetooth positioning to new heights. Its application can be automatic meter reading, home building automation, security system, remote irrigation system. Limited module procedures not applicable; Single Modular Approval Request Trace antenna designs Not applicable;

RF exposure considerations The equipment complies with FCC Radiation exposure limits set forth for uncontrolled environment. This equipment should be installed and operated with minimum distance 5mm between the radiator and your body www.spintly.com 19 SPNYL01-X Bluetooth module datasheet Antennas The SPNYL01-X is an BLE Module beams signals and communicates with its antenna, which is PCB Antenna and External 2.4Ghz FPC antenna. Antenna could not be in no load state when module is working. During debugging, it is suggested to add 50 Ohms load to the antenna port to avoid damage or performance degradation of the module under long-time no-load conditions Label and Compliance information The final end product must display the following content in the visible area Host must Contains FCC ID: 2A3ZU-SPNYL01. If the size of the end product is larger than 8x10cm, then the following FCC part 15.19 statement has to also be available on the label: The device complies with part 15 of FCC rules. Operation is subject to the following 2 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 Information on test modes and additional testing requirements Data transfer module demo board can control the EUT work in RF test mode at specified test channel. FCC ID Location:

OEM Warning statement (Module) The modular transmitter must be equipped with either a permanently affixed label or must be capable of electronically displaying its FCC identification number If using a permanently affixed label, the modular transmitter must be labelled with its own FCC identification number, and, if the FCC identification number 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: 2A3ZU-SPNYL01. 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. Additional testing:

The OEM integrator is still responsible for the FCC compliance requirement of the end product, which integrates this module. Appropriate measurements (e.g. 15 B compliance, 15C intentional emissions (Fundamental + Out-of-Band Emission)) and if applicable additional equipment authorizations (e.g. Verification, DoC) of the host device to be addressed by the integrator/manufacturer. This device is intended only for OEM integrators under the following conditions:

1) The antenna must be installed such that 20 cm is maintained between the antenna and users, and 2) This device and its antenna(s) must not be colocated with any other transmitters except in accordance with FCC multitransmitter product procedures. Referring to the multitransmitter policy, multipletransmitter(s) and module(s) can be operated simultaneously without C2P. www.spintly.com 20 SPNYL01-X Bluetooth module datasheet 3) For all products market in US, OEM has to limit the operation channels in CH1 to CH11 for 2.4G band by supplied firmware programming tool. OEM shall not supply any tool or info to the enduser regarding to Regulatory Domain change. USERS MANUAL OF THE END PRODUCT:

In the users manual of the end product, the end user has to be informed to keep at least 20cm separation with the antenna while this end product is installed and operated. The end user has to be informed that the FCC radio frequency exposure guidelines for an uncontrolled environment can be satisfied. The end user has to also be informed that any changes or modifications not expressly approved by the manufacturer could void the user's authority to operate this equipment. If the size of the end product is smaller than 8x10cm, then additional FCC part 15.19 statement is required to be available in the users manual:

This device complies with Part 15 of 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. LABEL OF THE END PRODUCT:

The final end product must be labelled in a visible area with the following " Contains FCC ID: 2A3ZU-

SPNYL01". If the size of the end product is larger than 8x10cm, then the following FCC part 15.19 statement has to also be available on the label:

This device complies with Part 15 of 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. DECLARATION: The contents of this datasheet are subject to change without prior notice for further improvement. Spintly team reserves all the rights for the final explanation. Please contact Spintly sales team or visit WWW.SPINTLY.COM to get more related information if needed. Contact Information SPINTLY Website: www.spintly.com sales@spintly.com Contact: +91 8766812888 Address: G1, Vaz Appts, Fatorda, Salcette, Goa 403602 www.spintly.com 21

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MOKO TECHNOLOGY LIMITED Date: 01/15/2022 To Whom It May Concem:

The letter grants authorization for representative of Spintly Inc. to apply the FCC for a change in identification. This authorization applies to MOKO TECHNOLOGY LIMITED , granted on 01/13/2021, The equipment is electrically identical. The only change being the applicant, appearance and Spintly Inc. on the device. The original test results, technical representative of and applicable to the changed equipment. Should there be any question, please feel free to contact us. information and relevant documents continue to be Sincerely Client's signature Client's name / title:

Tel: 86-755-23956710 Email: lipton@mokotechnology.com jinghui Chen/Manager

Spintly Inc. Federal Communications Commission Equipment Authorization Division 7435 Oakland Mills Road Columbia, MD 21046 USA Date:

Subject; Modular Transmitter Application Company name: Spintly Inc. FCC ID: 2A3ZU-SPNYL01 Dear Sir/Madam, This letter includes the FCC application requirements for Modular Transmitter Approval Request for;-

FCC KDB 996369 D01 Module Certification Guide v02; and FCC KDB 996369 D03 OEM Manual v01 In accordance with 47CFR 15.212 Modular Transmitters and KDB 996369 D01 Module Equip Auth Guide v02. FCC ID 2A3ZU-SPNYL01 has been examined against the following requirements. Requirement per 15.212 and KDB 996369 D01 The radio elements must have the radio frequency circuitry shielded. Physical components and tuning capacitor(s) may be located external to the shield, but must be on the module assembly. The module must have buffered modulation/data inputs to ensure that the device will comply with Part 15 requirements with any type of input signal. The module must contain power supply regulation on the module. The module must contain a permanently attached antenna, or contain a unique antenna connector, and be marketed and operated only with specific antenna(s), per 15.203, 15.204(b), 15.204(c), 15.212(a), 2.929(b). The module must demonstrate compliance in a stand-alone configuration. The module must be labeled with its permanently affixed FCC ID label, or use an electronic display (see KDB Publication 784748). The module must comply with all specific rules applicable to the transmitter, including all the conditions provided in the integration instructions by the grantee. The module must comply with RF exposure requirements Explanation from Grantee

(do not write yes/no, but explain why product complies/how it is achieved) The radio portion has his own shielding (see external photos). This has been integrated in the chipset. This is integrated. The module comes with two antennas options

(PCB Antenna for Model SPNYL01-P, External antenna For Model SPNYL01-E. Please refer to test set up configuration photo. The module has its own label. The instruction for labelling rules for the host device has been stated in the users manual The required FCC rules has been fulfilled and all instructions for maintaining compliance has been clearly stated in the users manual The equipment complies with FCC Radiation exposure limits set forth for uncontrolled environment. FCC Modular Approval Request Rev 3.0 Spintly Inc. This equipment should be installed and operated with minimum distance 5mm between the radiator and your body. Integration Instructions for host product manufacturers The following items are submitted in support of application for Modular Transmitter FCC ID as noted above as required by the FCC KDB 996369 D03 OEM Manual v01. These items are provided as integration instructions for host product manufacturers (e.g., OEM instruction manual) to use when integrating a module in a host product. Any requirements that are not applicable to the Module are as indicated below. Requirements of KDB 996369 D03 Summary of requirements and Checklist. Refer to the KDB for description of the complete requirements;

User Manual Page Number KDB Ref Sect reference 2.2 2.3 2.4 2.5 2.6 2.7 2.8 2.9 List of applicable FCC rules Summarize the specific operational use conditions Limited module procedures Trace antenna designs RF exposure considerations Antennas Label and compliance information Information on test modes and additional testing requirements Additional testing, Part 15 Subpart B disclaimer Page 19 Page 19 Page 19 Page 19 Page 19 Page 20 Page 20 Page 20 Page 20 2.10 Name: Brosnan Gomes Date: 2022.1.12 Title: Lead-Hardware Development Signature of applicant FCC Modular Approval Request Rev 3.0

Spintly Inc. Date2022-1-12 Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 USA Reference:

FCC ID:2A3ZU-SPNYL01 Dear Sir/Madam, Subject:

Request for 2.933 Change in identification of equipment Spintly Inc. requests a Change in Identification for a currently approved device. This application will establish a new FCC ID for purpose of marketing. The original Grant for MOKO TECHNOLOGY LIMITED, under FCC ID: 2AO94-MK07 with a Grant Date of 01/13/2021 will remain in effect. An authorization letter from the original Grantee is attached. We attest that the equipment is electrically identical. Only the model name, trade name, and FCC ID are different.The original test results are applicable and continue to be representative of this device. The following files are provided as attachments:

Cover letter giving permission from original Applicant for Change in ID External photos showing no physical changes to this device New FCC identification label and its location. Thanks and Best Regards, Signature:

Name:Brosnan Gomes Company: Spintly Inc. Address:6808 Cache Ct Phone:+917972046516 Email:brosnang@mrinq.com

Spintly Inc. Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 USA Subject; Request for Confidentiality FCC ID: 2A3ZU-SPNYL01 Date: 2022-01-12 To Whom It May Concern, Pursuant to the provisions of the Commissions rules Title 47 Sections 0.457 and 0.459, we are requesting the Commission to withhold the following attachment(s) as confidential documents from public disclosure indefinitely. These documents contain detailed system and equipment descriptions and are considered as proprietary information in operation of the equipment. The public disclosure of these documents might be harmful to our company and would give competitors an unfair advantage in the market. It is our understanding that all measurement test reports, FCC ID label format and correspondence during the certification review process cannot be granted as confidential documents and this information will be available for public review once the grant of equipment authorization is issued. Schematic Diagram Block Diagram Parts List Operational Description Tune-up Procedure Sincerely, Signature:

Name: Brosnan Gomes Title:Lead-Hardware Development

Spintly Inc. Model difference statement It is hereby declared that the product Product Name: Spintly Wireless IOT Module Model: SPNYL01-P Listed Model(s): SPNYL01-E FCC ID:2A3ZU-SPNYL01 Trade Mark: Spintly All models have the same circuit and RF module, just different antenna types Sincerely, Signature

[Brosnan Gomes]

[Lead-Hardware Development]

[Spintly Inc.]

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Spintly Inc. Letter of Authorization Company: Spintly Inc. Address: 6808 Cache Ct Product Name: Spintly Wireless IOT Module Model Number: SPNYL01-P, SPNYL01-E Trade mark:Spintly FCC Identifier: 2A3ZU-SPNYL01 We authorize MiCOM Labs Inc, 575 Boulder Court, Pleasanton, California 94566, USA, to act on our behalf on all matters concerning the above named equipment. Any individual within MiCOM Labs is authorized to act on our behalf and take action on the application. We declare that MiCOM Labs Inc, 575 Boulder Court, Pleasanton, California 94566, USA, is allowed to forward all information related to the approval project to the Federal Communication Commission and to discuss any issues concerning the approval application. Any and all acts carried out by MiCOM Labs on our behalf shall have the same effect as acts of our own. Name: Brosnan Gomes Date: 01.12.2022 Signature of applicant: