2A4MQ-RKHG105Headphone

Model: RK HG105IC:29367-RKHG105 Input: 5V 1A FCC ID:2A4MQ-RKHG105 Made in China www.rkgaming.com 211-260614 211-260614

TEST REPORT Applicant: Jingheng Tengwei (Huizhou) Electronic Technology Co., Ltd. Address: No. 8 Minying 1 Road, Yuanzhou Town, Boluo County, Huizhou City, Guangdong Province, China FCC ID: 2A4MQ-RKHG105 IC: 29367- RKHG105 HVIN: RK HG105 Product Name: Headphone Standard(s): 47 CFR Part 15, Subpart C (15.247) RSS-247 Issue 4, July 24, 2025 RSS-Gen, Issue 5, February 2021 Amendment 2 ANSI C63.10-2020+Cor. 1-2023+C63.10a-2024 + Errata to C63.10a-2024 KDB 558074 D01 15.247 Meas Guidance v05r02 The above device has been tested and found compliant with the requirement of the relative standards by China Certification ICT Co., Ltd (Dongguan) Report Number: 2603U66263E-RF-00A Date Of Issue: 2026/8/31 Reviewed By: Calvin Chen Title: RF Test Supervisor Approved By: Sun Zhong Title: Manager Test Laboratory: China Certification ICT Co., Ltd (Dongguan) Room 101 & 201, Building 2, 256 Pingdong Road, Dalang Town, Dongguan City, Guangdong, China. Tel: +86-769-83085888 www.ccttt.com.cn China Certification ICT Co., Ltd (Dongguan) Report No.: 2603U66263E-RF-00A Report Template: RF-FCC&ISED-BLE -A/0 Page 2 of 61 Test Facility The Test site used by China Certification ICT Co., Ltd (Dongguan) to collect test data is located on the Room 101 & 201, Building 2, 256 Pingdong Road, Dalang Town, Dongguan City, Guangdong,China. The lab has been recognized as the FCC accredited lab under the KDB 974614 D01 and is listed in the FCC Public Access Link (PAL) database, FCC Registration No. : 442868, the FCC Designation No. : CN1314. The lab has been recognized by Innovation, Science and Economic Development Canada to test to Canadian radio equipment requirements, the CAB identifier: CN0123. Declarations China Certification ICT Co., Ltd (Dongguan) is not responsible for the authenticity of any test data provided by the applicant. Data included from the applicant that may affect test results are marked with a triangle symbol “▲”. Customer model name, addresses, names, trademarks etc. are not considered data. Unless otherwise stated the results shown in this test report refer only to the sample(s) tested. This report cannot be reproduced except in full, without prior written approval of the Company. This report is valid only with a valid digital signature. The digital signature may be available only under the Adobe software above version 7.0. This report may contain data that are not covered by the accreditation scope and shall be marked with an asterisk “★”. Each test item follows the test standard(s) without deviation. China Certification ICT Co., Ltd (Dongguan) Report No.: 2603U66263E-RF-00A Report Template: RF-FCC&ISED-BLE -A/0 Page 3 of 61 CONTENTS DOCUMENT REVISION HISTORY .......................................................................................... 4 1. GENERAL INFORMATION .................................................................................................... 5 1.1 PRODUCT DESCRIPTION FOR EQUIPMENT UNDER TEST (EUT) ....................................................... 5 1.1.2 Antenna Information Detail▲ ....................................................................................................................... 5 1.1.3 Accessory Information ................................................................................................................................... 6 1.2 DESCRIPTION OF TEST CONFIGURATION ........................................................................................... 6 1.2.1 EUT Operation Condition .............................................................................................................................. 6 1.2.2 Support Equipment List and Details .............................................................................................................. 6 1.2.3 Support Cable List and Details ...................................................................................................................... 6 1.2.4Block Diagram of Test Setup .......................................................................................................................... 6 1.3 MEASUREMENT UNCERTAINTY .......................................................................................................... 7 2. SUMMARY OF TEST RESULTS ............................................................................................ 8 3. REQUIREMENTS AND TEST PROCEDURES .................................................................... 9 3.1 AC LINE CONDUCTED EMISSIONS ...................................................................................................... 9 4. Test DATA AND RESULTS .................................................................................................... 26 4.1 AC LINE CONDUCTED EMISSIONS .................................................................................................... 26 4.2 RADIATION SPURIOUS EMISSIONS .................................................................................................... 27 4.2.1 9kHz–1GHz ................................................................................................................................................. 27 4.2.2 1GHz –25GHz ............................................................................................................................................. 36 4.3 6DB EMISSION BANDWIDTH .............................................................................................................. 48 4.4 99% OCCUPIED BANDWIDTH ............................................................................................................ 50 4.5 MAXIMUM CONDUCTED OUTPUT POWER........................................................................................ 52 4.6 MAXIMUM POWER SPECTRAL DENSITY ............................................................................................ 54 4.7 CONDUCTED SPURIOUS EMISSION .................................................................................................…

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China Certification ICT Co., Ltd (Dongguan) EXHIBIT No.: 2603U66263E-RF-00A-TSP Page 1 / 3 TEST SETUP PHOTOGRAPHS Radiated Emission 30 MHz-1 GHz View Radiated Emission 9 kHz-30 MHz Parallel View China Certification ICT Co., Ltd (Dongguan) EXHIBIT No.: 2603U66263E-RF-00A-TSP Page 2 / 3 Radiated Emission 9 kHz-30 MHz Perpendicular View Radiated Emission 9 kHz-30 MHz Ground-parallel View China Certification ICT Co., Ltd (Dongguan) EXHIBIT No.: 2603U66263E-RF-00A-TSP Page 3 / 3 Radiated Emission 1-18GHz View Radiated Emission 18-25GHz View *****END *****

TEST REPORT Applicant: Jingheng Tengwei (Huizhou) Electronic Technology Co., Ltd. Address: No. 8 Minying 1 Road, Yuanzhou Town, Boluo County, Huizhou City, Guangdong Province, China FCC ID: 2A4MQ-RKHG105 IC: 29367- RKHG105 HVIN: RK HG105 Product Name: Headphone Standard(s): 47 CFR Part 15, Subpart C (15.247) RSS-247 Issue 4, July 24, 2025 RSS-Gen, Issue 5, February 2021 Amendment 2 ANSI C63.10-2020+Cor. 1-2023+C63.10a-2024+Errata to C63.10a-2024 KDB 558074 D01 15.247 Meas Guidance v05r02 The above device has been tested and found compliant with the requirement of the relative standards by China Certification ICT Co., Ltd (Dongguan) Report Number: 2603U66263E-RF-00C Date Of Issue: 2026/8/10 Reviewed By: Calvin Chen Title: RF Test Supervisor Approved By: Sun Zhong Title: Manager Test Laboratory: China Certification ICT Co., Ltd (Dongguan) Room 101 & 201, Building 2, 256 Pingdong Road, Dalang Town, Dongguan City, Guangdong, China. Tel: +86-769-83085888 www.ccttt.com.cn China Certification ICT Co., Ltd (Dongguan) Report No.: 2603U66263E-RF-00C Report Template: RF-FCC&ISED-2.4G SRD-A/1 Page 2 of 60 Test Facility The Test site used by China Certification ICT Co., Ltd (Dongguan) to collect test data is located on the Room 101 & 201, Building 2, 256 Pingdong Road, Dalang Town, Dongguan City, Guangdong,China. The lab has been recognized as the FCC accredited lab under the KDB 974614 D01 and is listed in the FCC Public Access Link (PAL) database, FCC Registration No. : 442868, the FCC Designation No. : CN1314. The lab has been recognized by Innovation, Science and Economic Development Canada to test to Canadian radio equipment requirements, the CAB identifier: CN0123. Declarations China Certification ICT Co., Ltd (Dongguan) is not responsible for the authenticity of any test data provided by the applicant. Data included from the applicant that may affect test results are marked with a triangle symbol “▲”. Customer model name, addresses, names, trademarks etc. are not considered data. Unless otherwise stated the results shown in this test report refer only to the sample(s) tested. This report cannot be reproduced except in full, without prior written approval of the Company. This report is valid only with a valid digital signature. The digital signature may be available only under the Adobe software above version 7.0. This report may contain data that are not covered by the accreditation scope and shall be marked with an asterisk “★”. Each test item follows the test standard(s) without deviation. China Certification ICT Co., Ltd (Dongguan) Report No.: 2603U66263E-RF-00C Report Template: RF-FCC&ISED-2.4G SRD-A/1 Page 3 of 60 CONTENTS DOCUMENT REVISION HISTORY .......................................................................................... 5 1. GENERAL INFORMATION .................................................................................................... 6 1.1 PRODUCT DESCRIPTION FOR EQUIPMENT UNDER TEST (EUT) ....................................................... 6 1.1.1 General ........................................................................................................................................................... 6 1.1.2 Operation Frequency Detail ........................................................................................................................... 6 1.1.3 Antenna Information Detail▲ ....................................................................................................................... 6 1.1.4 Accessory Information ................................................................................................................................... 6 1.2 DESCRIPTION OF TEST CONFIGURATION ........................................................................................... 7 1.2.1 EUT Operation Condition: ............................................................................................................................. 7 1.2.2 Support Equipment List and Details .............................................................................................................. 7 1.2.3 Support Cable List and Details ...................................................................................................................... 7 1.2.4 Block Diagram of Test Setup ......................................................................................................................... 7 1.3 MEASUREMENT UNCERTAINTY .......................................................................................................... 8 2. SUMMARY OF TEST RESULTS ............................................................................................ 9 3. REQUIREMENTS AND TEST PROCEDURES .................................................................. 10 3.1 AC LINE CONDUCTED EMISSIONS .................................................................................................... 10 3.1.1 Applicable Standard ..................................................................................................................................... 10 3.1.2 EUT Setup.................................................................................................................................................... 12 3.1.3 EMI Test Receiver Setup ............................................................................................................................. 12 3.1.4 Test Procedure ............................................................................................................................................. 13 3.1.5 Corrected Amplitude & Margin Calculation ................................................................................................ 13 3.2 RADIATION SPURIOUS EMISSIONS .................................................................................................... 14 3.2.1 Applicable Standard ................................................................................................…

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Antenna Photo & Length (mm) Inverted F Antenna Specification Summary ITEMANT SPEC Model Name 2.4G ANT Horiz ontalVertical 2400MHz 2450MHz 2500MHz 2400MHz 2450MHz 2500MHz Center Frequency -1.26 -0.76 -0.58 -5.25 -2.46 -1.86 MAX. Gain -0.5 8dBi Pola rizationHorizontal and Vertical Azim uth Beam Pattern Omni-directional Impedance50 Ohm Antenna Length 15.2*5.7mm Manu facture GOLDENMAX INTERNATIONAL TECHNOLOGY (HANGZHOU) LTD No 188 Dakang Rd Lin'an Qingshanlake SubdistrictHangzhou, Zhejiang 311305 CHINA Horizontal: 2400 MHz 2450 MHz 2500 MHz Power (dBm) Max: 0 Min: -40 Scale: 5/div Gain(dBi) Frequency (MHz) Max Min Avg 2400 -1.26174 -30.0801 -7.18716 2450 -0.765802 -36.5604 -7.48023 2500 -0.585582 -22.0315 -6.59127 Vertical: 2400 MHz 2450 MHz 2500 MHz Power (dBm) Max: 0 Min: -30 Scale: 5/div Gain(dB) Frequency (MHz) Max Min Avg 2400 -5.2537 -22.1424 -12.4294 2450 -2.4652 -24.5837 -10.4702 2500 -1.86120 -29.5214 -9.20432 ANT Test Labs：Attestation of Global Compliance Co., Ltd. Gain(dBi)

Jingheng Tengwei (Huizhou) Electronic Technology Co., Ltd. Add: No. 8 Minying 1 Road, Yuanzhou Town,Boluo County, Huizhou City, Guangdong Province, China Tel: +86 18576395720 Fax: 0752-6396368 Email: [email protected] Attestation Letter Date: 2026-8-24 FEDERAL COMMUNICATIONS COMMISSION Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Dear Sir or Madam: Our product Headphone,model: RK HG105,FCC ID:2A4MQ-RKHG105, for marketing purpose, this product onlysupports BT (GFSK:2402-2480MHz), BLE 1M(2402-2480MHz), 2.4G SRD (2402-2480MHz). The other functions, bands and modes was disabled to use by manufacturer in thesoftware, the end user has no capability to activate it. Sincerely, Printed Name: Chuangling Zhang Title: Manager

RF EXPOSURE EVALUATION REPORT Applicant: Jingheng Tengwei (Huizhou) Electronic Technology Co., Ltd. Address: No. 8 Minying 1 Road, Yuanzhou Town, Boluo County, Huizhou City, Guangdong Province, China FCC ID: 2A4MQ-RKHG105 Product Name: Headphone Standard(s): 47 CFR §1.1310 The above equipment has been tested and found compliant with the requirement of the relative standards by China Certification ICT Co., Ltd (Dongguan) Report Number: 2603U66263E-RF-00 Date Of Issue: 2026/8/10 Reviewed By: Calvin Chen Title: RF Test Supervisor Reviewed By: Sun Zhong Title: Manager Test Laboratory: China Certification ICT Co., Ltd (Dongguan) Room 101 & 201, Building 2, 256 Pingdong Road, Dalang Town, Dongguan City, Guangdong, China. Tel: +86-769-83085888 www.ccttt.com.cn China Certification ICT Co., Ltd (Dongguan) Report No.: 2603U66263E-RF-00 Report Template: RF-FCC MPE-A/0 Page 2 of 6 Test Facility The Test site used by China Certification ICT Co., Ltd (Dongguan) to collect test data is located on the Room 101 & 201, Building 2, 256 Pingdong Road, Dalang Town, Dongguan City, Guangdong, China. The lab has been recognized as the FCC accredited lab under the KDB 974614 D01 and is listed in the FCC Public Access Link (PAL) database, FCC Registration No. : 442868, the FCC Designation No. : CN1314. The lab has been recognized by Innovation, Science and Economic Development Canada to test to Canadian radio equipment requirements, the CAB identifier: CN0123. Declarations China Certification ICT Co., Ltd (Dongguan) is not responsible for the authenticity of any test data provided by the applicant. Data included from the applicant that may affect test results are marked with a triangle symbol “▲”. Customer model name, addresses, names, trademarks etc. are not considered data. Unless otherwise stated the results shown in this test report refer only to the sample(s) tested. This report cannot be reproduced except in full, without prior written approval of the Company. This report is valid only with a valid digital signature. The digital signature may be available only under the Adobe software above version 7.0. This report may contain data that are not covered by the accreditation scope and shall be marked with an asterisk “★”. Each test item follows the test standard(s) without deviation. China Certification ICT Co., Ltd (Dongguan) Report No.: 2603U66263E-RF-00 Report Template: RF-FCC MPE-A/0 Page 3 of 6 CONTENTS DOCUMENT REVISION HISTORY .......................................................................................... 4 1. GENERAL INFORMATION .................................................................................................... 5 1.1 PRODUCT DESCRIPTION FOR EQUIPMENT UNDER TEST (EUT) ....................................................... 5 2. RF EXPOSURE EVALUATION .............................................................................................. 6 2.1 RF EXPOSURE EVALUATION ............................................................................................................... 6 2.1.1 Applicable Standard ....................................................................................................................................... 6 2.1.2 Measurement Result ....................................................................................................................................... 6 China Certification ICT Co., Ltd (Dongguan) Report No.: 2603U66263E-RF-00 Report Template: RF-FCC MPE-A/0 Page 4 of 6 DOCUMENT REVISION HISTORY Revision Number Report Number Description of Revision Date of Revision 1.0 2603U66263E-RF-00 Original Report 2026/8/10 China Certification ICT Co., Ltd (Dongguan) Report No.: 2603U66263E-RF-00 Report Template: RF-FCC MPE-A/0 Page 5 of 6 1. GENERAL INFORMATION 1.1 Product Description for Equipment under Test (EUT) EUT Name: Headphone EUT Model: RK HG105 Trade Name: Rated Input Voltage: 3ORN-3 EUT Received Date: 2026/6/30 EUT Received Status: Good China Certification ICT Co., Ltd (Dongguan) Report No.: 2603U66263E-RF-00 Report Template: RF-FCC MPE-A/0 Page 6 of 6 2. RF EXPOSURE EVALUATION 2.1 RF Exposure Evaluation 2.1.1 Applicable Standard According to§15.247(i) and §1.1310, systems operating under the provisions of this section shall be operated in a manner that ensure that the public is not exposed to radio frequency energy level in excess of the Commission’s guideline. According to KDB447498 D01 General RF Exposure Guidance v06: The 1-g and 10-g SAR test exclusion thresholds for 100 MHz to 6 GHz at test separation distances≤ 50 mm are determined by:[(max. power of channel, including tune-up tolerance, mW)/(min. test separation distance, mm)] •[√f(GHz)] ≤ 3.0 for 1-g SAR and ≤ 7.5 for 10-g extremity SAR, where • f(GHz) is the RF channel transmit frequency in GHz • Power and distance are rounded to the nearest mW and mm before calculation • The result is rounded to one decimal place for comparison • 3.0 and 7.5 are referred to as the numeric thresholds in the step 2 below The test exclusions are applicable only when the minimum test separation distance is ≤ 50 mm and for transmission frequencies between 100 MHz and 6 GHz. When the minimum test separation distance is < 5 mm, a distance of 5 mm according to 5) in section 4.1 is applied to determine SAR test exclusion 2.1.2 Measurement Result Mode Frequency (MHz) Conducted Output Power Including Tolerance Distance (mm) Calculated value Threshold (1-g) SAR Test Exclusion (dBm) (mW) BLE 2402-2480 3.5 2.24 5 0.7 3 Yes BDR/EDR 2402-2480 1 1.26 5 0.4 3 Yes SRD 2402-2480 3 2 5 0.6 3 Yes Note: 1. The Maximum Conducted Power including Tune-up Tolerance was declared by manufacturer. 2. The Bluetooth and SRD cannot transmit simultaneously. Result: Compliant. The stand-alone SAR test is not necessary. ===== END OF REPORT =====

China Certification ICT Co., Ltd (Dongguan) EXHIBIT No.: 2603U66263E-RF-INP Page 1 / 9 EUT INTERNAL PHOTOGRAPHS China Certification ICT Co., Ltd (Dongguan) EXHIBIT No.: 2603U66263E-RF-INP Page 2 / 9 China Certification ICT Co., Ltd (Dongguan) EXHIBIT No.: 2603U66263E-RF-INP Page 3 / 9 China Certification ICT Co., Ltd (Dongguan) EXHIBIT No.: 2603U66263E-RF-INP Page 4 / 9 China Certification ICT Co., Ltd (Dongguan) EXHIBIT No.: 2603U66263E-RF-INP Page 5 / 9 China Certification ICT Co., Ltd (Dongguan) EXHIBIT No.: 2603U66263E-RF-INP Page 6 / 9 China Certification ICT Co., Ltd (Dongguan) EXHIBIT No.: 2603U66263E-RF-INP Page 7 / 9 Antenna China Certification ICT Co., Ltd (Dongguan) EXHIBIT No.: 2603U66263E-RF-INP Page 8 / 9 China Certification ICT Co., Ltd (Dongguan) EXHIBIT No.: 2603U66263E-RF-INP Page 9 / 9 *****END *****

Model: RK HG105IC:29367-RKHG105 Input: 5V 1AFCC ID:2A4MQ-RKHG105 Made in China www.rkgaming.com 211-260614

China Certification ICT Co., Ltd (Dongguan) EXHIBIT No.: 2603U66263E-RF-EXP Page 1 / 17 EUT EXTERNAL PHOTOGRAPHS China Certification ICT Co., Ltd (Dongguan) EXHIBIT No.: 2603U66263E-RF-EXP Page 2 / 17 Black Headphone China Certification ICT Co., Ltd (Dongguan) EXHIBIT No.: 2603U66263E-RF-EXP Page 3 / 17 China Certification ICT Co., Ltd (Dongguan) EXHIBIT No.: 2603U66263E-RF-EXP Page 4 / 17 China Certification ICT Co., Ltd (Dongguan) EXHIBIT No.: 2603U66263E-RF-EXP Page 5 / 17 China Certification ICT Co., Ltd (Dongguan) EXHIBIT No.: 2603U66263E-RF-EXP Page 6 / 17 China Certification ICT Co., Ltd (Dongguan) EXHIBIT No.: 2603U66263E-RF-EXP Page 7 / 17 China Certification ICT Co., Ltd (Dongguan) EXHIBIT No.: 2603U66263E-RF-EXP Page 8 / 17 White Headphone China Certification ICT Co., Ltd (Dongguan) EXHIBIT No.: 2603U66263E-RF-EXP Page 9 / 17 China Certification ICT Co., Ltd (Dongguan) EXHIBIT No.: 2603U66263E-RF-EXP Page 10 / 17 China Certification ICT Co., Ltd (Dongguan) EXHIBIT No.: 2603U66263E-RF-EXP Page 11 / 17 China Certification ICT Co., Ltd (Dongguan) EXHIBIT No.: 2603U66263E-RF-EXP Page 12 / 17 China Certification ICT Co., Ltd (Dongguan) EXHIBIT No.: 2603U66263E-RF-EXP Page 13 / 17 China Certification ICT Co., Ltd (Dongguan) EXHIBIT No.: 2603U66263E-RF-EXP Page 14 / 17 Dongle China Certification ICT Co., Ltd (Dongguan) EXHIBIT No.: 2603U66263E-RF-EXP Page 15 / 17 China Certification ICT Co., Ltd (Dongguan) EXHIBIT No.: 2603U66263E-RF-EXP Page 16 / 17 China Certification ICT Co., Ltd (Dongguan) EXHIBIT No.: 2603U66263E-RF-EXP Page 17 / 17 *****END *****

Jingheng Tengwei (Huizhou) Electronic Technology Co., Ltd. Add: No. 8 Minying 1 Road, Yuanzhou Town,Boluo County, Huizhou City, Guangdong Province, China Tel: +86 18576395720 Fax: 0752-6396368 Email: [email protected] DECLARATION OF SIMILARITY Date: 2026-6-23 FEDERAL COMMUNICATIONS COMMISSION Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Dear Sir or Madam: We, Jingheng Tengwei (Huizhou) Electronic Technology Co., Ltd., hereby declare that the product: Headphone, FCC ID: 2A4MQ- RKHG105, model: RK HG105 which was tested by China Certification ICT Co., Ltd (Dongguan). This model is just with different colors for different distribution chains, the rest are the same. P lease contact me should there be need for any additional clarification or information. Best Regards, Sig nature: P rinted Name: Chuangling Zhang Title: Manager

QA-FR-171-A Jingheng Tengwei (Huizhou) Electronic Technology Co., Ltd. Add: No. 8 Minying 1 Road, Yuanzhou Town,Boluo County, Huizhou City, Guangdong Province, China Tel: +86 18576395720 Fax: 0752-6396368 Email: [email protected] FCC Confidential Authorization Date: 2026-8-24 FEDERAL COMMUNICATIONS COMMISSIONS Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Subject: Confidentiality Request regarding application for certification of FCC ID: 2A4MQ-RKHG105 In accordance with Sections 0.457 and 0.459 of the Commission’s Rules, (Jingheng Tengwei (Huizhou) Electronic Technology Co., Ltd.) hereby requests long-term confidential treatment of information accompanying this application as outlined below: • Block Diagram • Schematics •Operation Description The above materials contain proprietary and confidential information not customarily released to the public. The public disclosure of these materials provides unjustified benefits to its competitors in the market. Sincerely, Signature: Printed Name: Chuangling Zhang Title: Manager

Jingheng Tengwei (Huizhou) Electronic Technology Co., Ltd. Add: No. 8 Minying 1 Road, Yuanzhou Town,Boluo County, Huizhou City, Guangdong Province, China Tel: +86 18576395720 Fax: 0752-6396368 Email: [email protected] FCC Authorization Date: 2026-8-14 FEDERAL COMMUNICATIONS COMMISSION Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Subject: Agent Authorization To whom it may concern: We,Jingheng Tengwei (Huizhou) Electronic Technology Co., Ltd., herebyauthorizes China Certification ICT Co., Ltd (Dongguan)to act on its behalf in all matters relating to application for Equipment authorization, including the signing of all documents relating to these matters. All acts carried out by China Certification ICT Co., Ltd (Dongguan)on our behalf shall have the same effect as our own action. We, the undersigned, hereby certify that we are not subject to a denial of federal benefits, that includes FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Actof 1988, 21 U.S.C. 862. This authorization is valid until further written notice from the applicant. Sincerely Yours, Client’s signature Printed Name: Chuangling Zhang Title: Manager QA-FR-170-B

U.S. AGENT LETTER OF ATTESTATION Date: 2026-7-16 FEDERAL COMMUNICATIONS COMMISSION Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Ref: Attestation Statements CFR 47 §2.911(d)(7) Filing FCC ID: 2A4MQ-RKHG105 Jingheng Tengwei (Huizhou) Electronic Technology Co., Ltd. certifies that, as of the date of the application, Iconsigh is our designated U.S. agent for service of process for the above referenced FCC ID. Jingheng Tengwei (Huizhou) Electronic Technology Co., Ltd. (“the Applicant”) 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. Iconsigh 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: Company Name: Iconsigh Address: 2310 Homestead Road, Suite C1, Los Altos, CA, 94024, USA FRN: 0033398652 Tel.: +1 (408) 320-9867 Email: [email protected] Signed by (printed name): Benjamin Kaur Signature: Applicant: Jingheng Tengwei (Huizhou) Electronic Technology Co., Ltd. Address: No. 8 Minying 1 Road, Yuanzhou Town,Boluo County, Huizhou City, Guangdong Province, China FRN: 0031988330 Tel: 18576395720 Email: [email protected] Signed by (printed name): ChuanglingZhang Signature:

Jingheng Tengwei (Huizhou) Electronic Technology Co., Ltd. Add: No. 8 Minying 1 Road, Yuanzhou Town,Boluo County, Huizhou City, Guangdong Province, China Tel: +86 18576395720 Fax: 0752-6396368 Email: [email protected] CFR 47 §2.911(d)(5)(i)(ii) Attestation Letter Attestation Letter Date: 2026-8-24 FEDERAL COMMUNICATIONS COMMISSIONS Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Ref: Attestation Statements CFR 47 §2.911(d)(5)(i)(ii) Filing FCC ID: 2A4MQ-RKHG105 Jingheng Tengwei (Huizhou) Electronic Technology 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. Jingheng Tengwei (Huizhou) Electronic Technology 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 an entity producing “covered” equipment. Jingheng Tengwei (Huizhou) Electronic Technology Co., Ltd. certifies that the equipment does not use Kaspersky's software information. Sincerely, Signature Printed Name: Chuangling Zhang Title: Manager