FCC ID: 2BL2Z20800D8-04 WIFI Module

SPECIFICATION 20800D8-04V1.0&1ANT IEEE 802. 11 Wi-Fi Integrated Approved by Company Checked by Rechecked by Approved by Please send the original back to us after you have approved and signed. Approved by customer Comments Approved b y l Companys sea Customers Name:

REVISION HISTORY VERSION DATE BOARD ID PAGE DESCRIPTI ON AUTHOR V1.0 2023.05.27 AIC8800D40 1. Introduction 20800D8-04 module is based on AIC8800D40 solution. 20800D8-04 is a combo low-power, and high-integrated wireless communication module which is designed for meeting the customers needs of high-performance band dual small size and low cost. This module supports both WLAN and functions. Its WLAN/function supports the USB2.0/SDIO3.0 interface, and its BT function supports the UART interface, and the module meets the requirements of standard protocol IEEE 802.11 . Such units as power management, power amplifier and low- noise amplifier are integrated in the main chip of the module. Its WLAN PHY rate is up to 2 8 6 . 8 Mbps@TX. The module can be applied in smart sound boxes, set-

top boxes,game machines, printers, IP cameras, tachographs, and other smart equipment. This documentation describes the engineering requirements specification. 20800D8-04 AIC8800D40 20800D8-04 WLAN WLAN/BT USB2.0 / SDIO3.0 UART IEEE 802.11 2. Features Reserving System Chip Solution Band Dimensions IEEE Std. 802.11b IEEE Std. 802.11g IEEE Std. 802.11n IEEE Std. 802.11ax AIC8800D40 2.4GHz 12mm12mm1.85mm Antenna Stamp Hole Installation Mode SMD Remark 2 4. Package Outline and Mountin g 3 5. Pin Definition PIN 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 27 SYMBOL GND WL_ANT GND NC NC GPIOB5/HOST_WAKE GPIOB3/WAKE_HOST NC VBAT NC NC PWR_WF WL_WAKE_HOST SDIO_D2 SDIO_D3 SDIO_CMD SDIO_CLK SDIO_D0 SDIO_D1 GND NC VIO NC NC PCM_OUT PCM_CLK PCM_IN DESCRIPTION Connected to Ground 2.4&

Connected to Ground

GPIO/

GPIO/

3.3V

PWR_KEY WIFI I/O I/O I/O I/O I/O I/O Connected to Ground

3.3V/1.8V

I/O I/O I/O 4 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 PCM_SYNC UART0_TX UART0_RX GND NC GND PWR_ NC GND NC NC NC NC UART1_RTS UART1_TX UART1_RX UART1_CTS 6. Product Pictures I/O I/O I/O Connected to Ground

Connected to Ground GPIO/_DIS GPIO Connected to Ground

I/O I/O I/O I/O

(Top view

(Bottom view 5 7. Key Materials

1 2 3 4 AIC8800D40 QFN48 AIC PCB 8. General Requirements No. 8-1 8-2 8-3 8-4 8-5 8-6 8-7 Feature Operation Voltage Current Consumption Ripple Operation Temperature Antenna Type Interface Description 3.3V0.3 580mA 120mV

-20C to +40C External antenna SDIO3.0/USB2.0/PCM/UART Storage Temperature

-40C to +85C 9. Electrical Characteristics

255 ;

3.3V(10%

The Test for electrical specification was performed under the following condition unless otherwise specified. Ambient condition Temperature :25 5;

Power supply voltages3.3V (10%) input power at the Module;

9.1 IEEE 802.11b Section (2.4GHz) Items Specification Mode Channel Data rate Contents IEEE802.11b CCK CH1 to CH13 1, 2, 5.5, 11Mbps TX Characteristics Min. Typ. Max. Unit Remark 1. Power Levels at each rate 6

(1Mbps~11Mbps) 2. Spectrum Mask @ target power 1) fc 11MHz to 22MHz 2) fc > 22MHz 3. Constellation Error(EVM)@ target power 1) 1Mbps 2) 2Mbps 3) 5.5Mbps 4) 11Mbps 4. Frequency Error RX Characteristics 5. Minimum Input Level Sensitivity 1) 1Mbps (FER 8%) 2) 2Mbps (FER 8%) 3) 5.5Mbps (FER 8%) 4) 11Mbps (FER 8%) 6. Maximum Input Level (FER 8%)

-20 Min.

-10

Typ.

-30

-50

-9.11

-9.11

-9.11

-9.11 20 Max.

-83

-80

-79

-76

dBr dBr dB dB dB dB ppm Unit dBm dBm dBm dBm dBm 9.2 IEEE 802.11g Section (2.4GHz) Items Specification Mode Channel Data rate Contents IEEE802.11g OFDM CH1 to CH13 6, 9, 12, 18, 24, 36, 48, 54Mbps TX Characteristics Min. Typ. Max. Unit Remark 1. Power Levels 1) For antenna port54M 2. Spectrum Mask @ target power 1) at fc +/-11MHz 2) at fc +/-20MHz 3) at fc > +/-30MHz 3 Constellation Error(EVM)@ target power 1) 6Mbps 2) 9Mbps 3) 12Mbps 4) 18Mbps 5) 24Mbps 6) 36Mbps 7) 48Mbps 8) 54Mbps 4 Frequency Error

-20

-28

-40

-5

-8

-10

-13

-16

-19

-22

-25 20 dBr dBr dBr dB dB dB dB dB dB dB dB ppm

-20 7 RX Characteristics Min. Typ. Max. 5 Minimum Input Level Sensitivity 1) 6Mbps (PER 10%) 2) 9Mbps (PER 10%) 3) 12Mbps (PER 10%) 4) 18Mbps (PER 10%) 5) 24Mbps (PER 10%) 6) 36Mbps (PER 10%) 7) 48Mbps (PER 10%) 8) 54Mbps (PER 10%)

-85

-84

-82

-80

-77

-73

-69

-65 Unit dBm dBm dBm dBm dBm dBm dBm dBm 9.3 IEEE 802.11n HT20/40 Section(2.4GHz) Items Contents Specification Mode Channel Data rate (MCS index) IEEE802.11n HT20/[email protected] OFDM HT20:CH1 to CH13 HT40:CH3 to CH11 MCS0/1/2/3/4/5/6/7 TX Characteristics Min. Typ. Max. Unit 1. Power Levels (Calibrated) 1) For antenna portMCS7 2. Spectrum Mask @target power 1) fc +/-22MHz 2) fc +/-40MHz 3) fc > +/-60MHz 3. Constellation Error(EVM)@ target power 1) MCS0 2) MCS1 3) MCS2 4) MCS3 5) MCS4 6) MCS5 7) MCS6 8) MCS7 4. Frequency Error RX Characteristics 5. Minimum Input Level Sensitivity 1) MCS0 (PER 10%) 2) MCS1 (PER 10%) 3) MCS2 (PER 10%) 4) MCS3 (PER 10%)

-20

-28

-45

-5

-10

-13

-16

-19

-22

-25

-28 20 Max. HT20 HT40

-82

-79

-77

-74

-79

-76

-74

-71 dBr dBr dBr dB dB dB dB dB dB dB dB ppm Unit dBm dBm dBm dBm

Typ.

-20 Min.

8 5) MCS4 (PER 10%) 6) MCS5 (PER 10%) 7) MCS6 (PER 10%) 8) MCS7 (PER 10%) 6. Maximum Input Level (PER 10%)

-20

-67

-63

-62

-61

-70

-66

-65

-64

Bm dBm dBm dBm dBm 9.4 IEEE 802.11ax HE20/40 Section (2.4GHz) Items Contents Specification Mode Channel Data rate (MCS index) IEEE802.11ax HE20/[email protected] OFDMA HE20:CH1 to CH13 HE40:CH3 to CH11 MCS0/1/2/3/4/5/6/7/8/9 TX Characteristics Min. Typ. Max. Unit 1. Power Levels (Calibrated) 1) For antenna portMCS11 2. Spectrum Mask @VHT20/VHT40 target power 1) fc +/- 11MHz/21MHz/41MHz 2) fc +/-20MHz/40MHz 3) fc +/-30MHz/60MHz 3. Constellation Error(EVM)@ target power 1) MCS0 2) MCS1 3) MCS2 4) MCS3 5) MCS4 6) MCS5 7) MCS6 8) MCS7 9) MCS8 10) MCS9 11) MCS10 12) MCS11 4. Frequency Error RX Characteristics 5.Minimum Input Level Sensitivity 1) MCS0 (PER 10%) 2) MCS1 (PER 10%) 3) MCS2 (PER 10%) 4) MCS3 (PER 10%)

-20

-28

-40

-5

-10

-13

-16

-19

-22

-25

-27

-30

-32

-34

-35 20 Max. HE20 HE40

-82

-79

-77

-74

-79

-76

-74

-71 dBr dBr dBr dB dB dB dB dB dB dB dB dB dB dB dB ppm Unit dBm dBm dBm dBm

Typ.

-20 Min.

9 5) MCS4 (PER 10%) 6) MCS5 (PER 10%) 7) MCS6 (PER 10%) 8) MCS7 (PER 10%) 9) MCS8(PER 10%) 10) MCS9(PER 10%) 11) MCS10(PER 10%) 12) MCS11(PER 10%) 6. Maximum Input Level (PER 10%)

-30

-67

-63

-62

-61

-56

-54

-51

-49

-70

-66

-65

-64

-59

-57

-54

-51

dBm dBm dBm dBm dBm dBm dBm dBm dBm 10 10. Reference Design 10.1 DC Electrical Characteristics Symbol Description conditions Min. Typ. Max. Unit VDD33 VDDIO IVDD33 IVDDIO VIH VIL VOH VOL RPU RPD Power supplies I/O input power supplies Power supply current I/O supply current High-level input voltage Low-level input voltage High-level output voltage Low-level output voltage Internal pull-up resistor Internal pull-down resistor

3.0 3.0 1.7

VDDIO=3.3V

VDDIO*0.625 VDDIO=1.8V VDDIO*0.65 VDDIO=3.3V VDDIO=1.8V

-0.3 VDDIO=3.3V VDDIO-0.4 VDDIO=1.8V VDDIO-0.2 VDDIO=3.3V VDDIO=1.8V VDDIO=3.3V VDDIO=1.8V VDDIO=3.3V VDDIO=1.8V

-0.3 40 10 40 10 3.3 3.3 1.8

75 50 75 50 3.6 3.6 1.9 800 50 VDDIO+0.3 VDDIO*0.25 VDDIO*0.35 VDDIO+0.3 0.4 0.2 190 100 190 100 V V mA mA V V V V k k 15 11. Mechanical,Environmental and Reliability Tests Test Items Test Conditions Qty Criteria Condition 11-1 Drop test The packed samples within 100Kg can be tested Drop height:

Face Side: 800/600/450mm Edge line: 600/450/350mm Drop time: 1 each Face and edge. X-Y-Z direction, first Frequency changing from 10Hz to 30Hz to 10Hz,amplitude 0.75mm, Vibration 5 times vibrations, then 11-2 test 11-3 Impact test frequency Changing from 30Hz to 55 Hz to 30 Hz, amplitude 0.15mm, 5 time vibration. Impact acceleration:

50m/sec2;

Impact duration: 16ms Impact times: 1000. Soldering 11-4 ability test Soldering temperature:

2355 Soldering duration:

20.5S Humidity Leave samples in 403, 11-5 test 93% RH @ 96 hours After drop test, the outer box and inner box will not been broken by appearance visual inspection. 1xBox 3 3 3 3 After test, the Appearance, Power EVM and Frequency error shall be satisfied with the specification. After test, the Appearance, Power EVM and Frequency error shall be satisfied with the specification. 1 . After soldering, the soldered area must be covered by a smooth bright solder layer, some deficiencies such as a small amount of the pinhole, not wetting are allowed, but the deficiencies can not be in the same place 2 . At least 90% of soldered area shall be covered continuously by the soldering material. Leave samples in standard test condition for 2 hours then test, the Appearance, Power, EVM and Frequency error functional parameter shall be satisfied with the test specification. 17 11-6 High Thermostat cabinet temperature:

temperature load life test 555 After test, leave samples in standard 60 condition for 1 hour and test, Power, EVM and Frequency error shall be satisfied Applied voltage:

with the test specification. 110% rated voltage Working duration: 200 hour (Supply Voltage Cycle 23h power on, 1h power off) High 11-7 temperature load test Low temperature storage 11-8 Temperature: 555 Samples work for 16 hours Leave the samples in

-253@24 hours After test, the Appearance, Power, EVM and Frequency error shall be Satisfied with the test specification. 3 Leave samples in standard test condition for 2 hours then test, the Appearance, 3 Power, EVM and Frequency error shall be satisfied with the test specification. test Low 11-9 temperature load test 11-10 Temperature circle test ContinuousTP 11-11 test Leave samples in -

153@ 2 hours, samples function shall be normal, the let samples work for 1 hour One cycle duration

-103@3H 403 @3H Total cycle: 10x Twice cycle duration

-103@4H

+603@4H,

+25@2H@2H Discharge voltage:

1kV C: 150pF 11-12 ESD Discharge resistance 330 Positive10 times 1 time for each second After test, leave the samples in standard condition and tested the Appearance, Power, EVM and Frequency error shall be satisfied with the test specification. After test, leave the samples in standard condition and tested Power EVM and Frequency error shall be qualified and all the characters shall be satisfied with the test specification. During test, There will not been appeared signal disconnection or interruption between DUT and AP. The products can recoverable smoothly after ESD test. 3 3 3 3 18 12. Package () 1 19 FCC Statement 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. NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device, pursua nt to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful inte rference in a residential installation. This equipment generates uses and can radiate radio frequency energy a nd, if not installed and used in accordance with the instructions, may cause harmful interference to radio com munications. 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 turn ing 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 receivingantenna. 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 important announcement Important Note:

Radiation Exposure Statement This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with minimum distance 20cm between the radiator and your body. This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter. Country Code selection feature to be disabled for products marketed to the US/Canada. 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. The transmitter module may not be co-located with any other transmitter or antenna, 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 end-user regarding to Regulatory Domain change. (if modular only test Channel 1-11) As long as the three conditions above are met, further transmitter testing will not be required. However, the OEM integrator is still responsible for testing their end-product for any additional compliance requirements required with this module installed. Important Note:

In the event that these conditions cannot be met (for example certain laptop configurations or co-location with another transmitter), then the FCC authorization is no longer considered valid and the FCC ID cannot be used on the final product. In these circumstances, the OEM integrator will be responsible for re-evaluating the end product (including the transmitter) and obtaining a separate FCC authorization. End Product Labeling The final end product must be labeled in a visible area with the following"

Contains FCC ID: 2BL2Z20800D8-04"

Manual Information to the End User The OEM integrator has to be aware not to provide information to the end user regarding how to install or remove this RF module in the users manual of the end product which integrates this module. The end user manual shall include all required regulatory information/warning as show in this manual. Integration instructions for host product manufacturers according to KDB 996369 D03 OEM Manual v01r01 2.2 List of applicable FCC rules CFR 47 FCC PART 15 SUBPART C has been investigated. It is applicable to the modular transmitter 2.3 Specific operational use conditions This module is stand-alone modular. If the end product will involve the Multiple simultaneously transmitting condition or different operational conditions for a stand-alone modular transmitter in a host, host manufacturer have to consult with module manufacturer for the installation method in end system. 2.4 Limited module procedures Not applicable 2.5 Trace antenna designs Not applicable 2.6 RF exposure considerations This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with minimum distance 20cm between the radiator & your body. 2.7 Antennas This radio transmitter to operate with the antenna types listed below, with the maximum permissible gain indicated. Antenna types not included in this list that have a gain greater than the maximum gain indicated for any type listed are strictly prohibited for use with this device. has been approved by Federal Communications Commission FCC ID: 2BL2Z20800D8-04 Antenna No. Model No. of antenna:

Type of antenna:

Gain of the antenna

(Max.) Frequency range:

2.4G Wi-Fi

FPC Antenna 1.82 2400-2500MHz 2.8 Label and compliance information The final end product must be labeled in a visible area with the following" Contains FCC ID: 2BL2Z20800D8-04". 2.9 Information on test modes and additional testing requirements Host manufacturer is strongly recommended to confirm compliance with FCC requirements for the transmitter when the module is installed in the host. 2.10 Additional testing, Part 15 Subpart B disclaimer Host manufacturer is responsible for compliance of the host system with module installed with all other applicable requirements for the system such as Part 15 B. 2.11 Note EMI Considerations Host manufacture is recommended to use D04 Module Integration Guide recommending as "best practice" RF design engineering testing and evaluation in case non-linear interactions generate additional non-compliant limits due to module placement to host components or properties. 2.12 How to make changes This module is stand-alone modular. If the end product will involve the Multiple simultaneously transmitting condition or different operational conditions for a stand-alone modular transmitter in a host, host manufacturer have to consult with module manufacturer for the installation method in end system. According to the KDB 996369 D02 Q&A Q12, that a host manufacture only needs to do an evaluation (i.e., no C2PC required when no emission exceeds the limit of any individual device (including unintentional radiators) as a composite. The host manufacturer must fix any failure.

Shen zhen Le Gexun Electronics Co., Ltd Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA Date: 2026/9/14 Ref: Attestation Statements Part 2.911(d)(5)(i) Filing FCC ID: 2BL2Z20800D8-04 Shen zhen Le Gexun Electronics Co., Ltd (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. Shen zhen Le Gexun Electronics Co., Ltd (the applicant) certifies that the equipment for which authorization is sought does not include cybersecurity or anti-virus software produced or provided by Kaspersky Lab, Inc. or any of its successors and assignees, including equipment with integrated Kaspersky Lab, Inc. (or any of its successors and assignees) cybersecurity or anti-virus software pursuant to DA-24-

886 and KDB 986446 D01 Covered Equipment Guidance section B(2a). Device is inherently compliant based on hardware limitations or software controls. or A Software Bill of Materials (SBOM) is provided to the TCB for review, and The end-user or third parties cannot install additional software on this device. Sincerely,

(Applicant signature) Contact Name:xiaokang shi Rev 1/26/2023

Shen zhen Le Gexun Electronics Co., Ltd Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA Date: 2026/9/14 Ref: Attestation Statements Part 2.911(d)(5)(ii) Filing FCC ID: 2BL2Z20800D8-04 Shen zhen Le Gexun Electronics Co., Ltd (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,

(Applicant signature) Contact Name:xiaokang shi Rev 1/26/2023

Shen zhen Le Gexun Electronics Co., Ltd Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Date: 2026/9/14 SUBJECT: FCC Application for FCC ID:2BL2Z20800D8-04 To Whom It May Concern:

We, the undersigned, hereby authorize Machael Mo at Shenzhen DACE Testing Technology Co., Ltd. on our behalf, to apply to the Federal Communications Commission on our equipment. Any and all acts carried out by Shenzhen DACE Testing Technology Co., Ltd. on our behalf shall have the same effect as acts of our own. This is to advise that we are in full compliance with the Anti- Drug Abuse Act. We, the applicant, 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. Regards,

(signature) xiaokang shi M:\Master Documents\TEMPLATES\POA_Letter.doc

Shen zhen Le Gexun Electronics Co., Ltd Federal Communications Commission Authorization and Evaluation Division Confidentiality Request regarding application for certification of FCC ID:2BL2Z20800D8-04. 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 Operation description FCC Software Security Requirements for UNII devices 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. Pursuant to DA04-1705 June 15, 2004 of the Commissions public notice, we also request temporary confidential treatment of information accompanying this application as outlined below:

Exhibit Type Sincerely,

(signature) xiaokang shi Rev 11/20/07

FCC ID:2BL2Z20800D8-04 Shen zhen Le Gexun Electronics Co., Ltd Model Confirmation Letter We,Shen zhen Le Gexun Electronics Co., Ltd, certify the product :WIFI Module, Model No.:20800D8-04, AIC8800, LGX8800D, LGX8840S, LGX8840S1, LGX8840S2, LGX8840U1, The product has many models, only the model name and color is different, and the other parts such as the circuit principle, pcb and electrical structure are the same.. Test sample model:20800D8-04. Signiture:xiaokang shi Company Name:Shen zhen Le Gexun Electronics Co., Ltd Date: 2026/9/16

Shen zhen Le Gexun Electronics Co., Ltd Federal Communications Commission Equipment Authorization Division 7435 Oakland Mills Road Columbia, MD 21046 USA Date: 2026/9/14 Subject; Modular Transmitter Application Company name: Shen zhen Le Gexun Electronics Co., Ltd FCC ID: 2BL2Z20800D8-04 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:2BL2Z20800D8-04 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 module have a metal shielded shell, except for an indicator light and necessary external solder joints, all inside the shielded shell The modular transmitter have buffered modulation/data inputs. The modular transmitter have its own power supply regulation. The modular transmitter comply with the antenna requirements of Section 15.203 and 15.204(c). The antenna either be permanently attached. The module can be configured independently and meets the requirements The FCC ID on the product: 2BL2Z20800D8-

04 The operationg requirements and instructions how to implement this module are described in the user manual. The module is Part 15 Low Power Communication Device Transmitter out power is 16.88 dBm(48.753mW), so the modular transmitter comply with any applicable RF exposure requirements. Name: xiaokang shi Date: 2026/9/14 Title:manager Signature of applicant FCC Modular Approval Request Rev 3.0

Shen zhen Le Gexun Electronics Co., Ltd Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA Date: 2026/9/14 Ref: Attestation Statements Part 2.911(d)(7) Filing FCC ID or Grantee Code:FCC ID: 2BL2Z20800D8-04 or 2BL2Z Applicant FRN: 0036239135 Shen zhen Le Gexun Electronics Co., Ltd (the applicant) certifies that, as of the date of the filing of the application, REP America LLC is our designated U.S. agent for service of process for the above referenced FCC ID. Shen zhen Le Gexun Electronics Co., Ltd accepts to maintain an agent for no less than one year after the grantee has terminated all marketing and importation or the conclusion of any Commission-

related proceeding involving the equipment. REP America LLC accepts, as of the date of the filing of the application, the obligation of the designated U.S. agent for service of process for the above referenced FCC ID. Designated U.S. Agent Information:

Name: REP America LLC S. Agent FRN: 0034192500 Address: 350 Terry St.200 Longmont, CO 80501 United States Contact Person: Mr Ben Xu Tel.: (719) 201-3314 Email: [email protected] Sincerely, xiaokang shi Shen zhen Le Gexun Electronics Co., Ltd

[Insert Applicant signature]

Mr Ben Xu REP America LLC

[U.S. Agent signature]

Rev 1/26/2023