2BAYR-YX-731ice cooling fan wireless charger

Dongguan City Humen Yongxin Electronic Factory ( NO.2,hongmian road 1,daning district,Humen town,Dongguan city,China) U.S. Agent Letter of Attestation 7435 Oakland Mills Road, Columbia, MD 21046, USA Designated U.S. Agent Company Name: HOPEK CORPORATION INC FRN: 0034562900 GC: N/A Address: 16755 Coyote Bush Dr Unit 84, San Diego, CA 92127 United States [ HOPEKCORPORATIONINC]("the agent) understand it is the agent's obligation to accept service of process in the United States for matters related to the applicable equipment, and at the physical U.S. address and email To: Federal Communications Commission Date: Jan.12, 26 Ref: Attestation Statement –Part2.911(d)(7) filing FCC ID: 2BAYR-YX-731 [ Dongguan City Humen Yongxin Electronic Factory](“the applicant”) certifies that, as of the date of the filing of the application,[ HOPEKCORPORATIONINC] (“the agent”)is our designated U.S. agent for service of process for the abovereference FCC ID. The applicant accepts to maintain an agent for service of process in the United States for no less than one year after either the grantee has permanently terminated all marketing and importation of the applicable equipment within the U.S., or the conclusion of any Commission-related administrative or judicial proceeding involving the equipment, whichever is later. The applicant further acknowledges it is our responsibility to inform the FCC whenever the agent information changes. address. Signature: Contact Person: Peter Davis Tel: 561-235-6113 Email: [email protected] Applicant Company Name: Dongguan City Humen Yongxin Electronic Factory Address: NO.2,hongmian road 1,daning district,Humen town, Dongguan city, China FRN: 0033697004 Signature: Contact Person: Sales Tian Tel: +86-13128078159 Email: [email protected]

(Dongguan City Humen Yongxin Electronic Factory) (January 8, 2026) Eurofins Electrical and Electronic Testing NA, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 RE: Attestation Statements Part 2.911(d)(5)(i) request for (FCC ID: 2BAYR-YX-731) [Dongguan City Humen Yongxin Electronic Factory] (“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. We also certify that, as of the date of the filing of the application, the equipment does not utilize cyber-security or anti-virus software from Kaspersky Lab, Inc, or any of its successors and assignees, which is also on the “covered list”. Sincerely, (Applicant signature) (Applicant printed name) Sales Tian (Dongguan City Humen Yongxin Electronic Factory) (January 8, 2026) Eurofins Electrical and Electronic Testing NA, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 RE: Attestation Statements Part 2.911(d)(5)(ii) request for (FCC ID: 2BAYR-YX-731) [Dongguan City Humen Yongxin Electronic Factory] (“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. Sincerely, (Applicant signature) (Applicant printed name) Sales Tian

Dongguan City Humen Yongxin Electronic Factory ( January 8, 2026) Eurofins Electrical and Electronic Testing NA, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 RE: CONFIDENTIALITY REQUEST FOR (ice cooling fan wireless charger / YX- 731/ FCC ID: 2BAYR-YX-731) To Whom It May Concern: This letter serves as an official request for confidentiality under sections 0.457 and 0.459 of CFR 47. We have requested that the Exhibits Long-Term Confidentiality Short-Term Confidentiality NOTE 2 ID Label/Location No No Attestation Statement No No External Photos No ☐ Block Diagram ☒ ☐ Schematics ☒ ☐ Test Report No No Test Setup Photos No ☐ User’s Manual ☐ NOTE 1 ☒ Internal Photos ☐ NOTE 1 ☒ Parts List / Tune Up ☐ ☐ RF Exposure Info No No Operational Description ☒ ☐ Cover Letter(s) No No SDR Software / Security Info ☒ No required to be submitted with this application be permanently withheld from public review. Above mentioned document contains detailed system and equipment description are considered as proprietary information in operation of the equipment. The public disclosure of above documents might be harmful to our company and would give competitor an unfair advantage in the market. Please contact me if there is any information you may need. Sincerely, Signature: Name: Sales Tian Title: Manager

Dongguan City Humen Yongxin Electronic Factory (January 8, 2026) Eurofins Electrical and Electronic Testing NA, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 RE: LETTER OF AGENT AUTHORIZATION To Whom It May Concern: We, the undersigned, hereby authorize ( Shenzhen DACE Testing Technology Co., Ltd.) to act on our behalf in all matters relating to application for equipment authorization, including the signing of all documents relating to these matters. We also hereby certify that no party to the application authorized hereunder is subject to the denial of benefits, including FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C.853(a). This agreement expires one year from the current date. Sincerely, Signature: Name: Sales Tian Title: Manager

External Appendix Mode: YX-731 FCC ID: 2BAYR-YX-731

Label Location: ice cooling fan wireless charger Model: YX-731 FCC ID: 2 BAYR-YX-731

V1.0 Report No.: DACE251225001RF002 102 Building H1 & 1/F., Building H, Hongfa Science & Technology Park, Tangtou, Shiyan, Bao'an District, Shenzhen, Guangdong, China Web:http://www. poce-cert.com Tel: 86-755-29113252 E-mail: [email protected] Page 1 of 14 RF Exposure Evaluation Report For Dongguan City Humen Yongxin Electronic Factory Product Name: ice cooling fan wireless charger Test Model(s): YX-731 R eport Reference No. : DACE251225001RF002 FCC ID : 2 B AY R-YX-731 A pplicant’s Name : Dongguan City Humen Yongxin Electronic Factory Address : NO.2,hongmian road 1,daning district,Humen town, Dongguan city, China T esting Laboratory : Shenzhen DACE Testing Technology Co., Ltd. Address : 102 Building H1 & 1/F., Building H, Hongfa Science & Technology Park, Tangtou, Shiyan, Bao’an District, Shenzhen, Guangdong, China D ate of Receipt : December 25, 2025 Date of Test : December 25, 2025 to January 7, 2026 Data of Issue : January 7, 2026 Result : Pass Note: This report shall not be reproduced except in full, without the written approval of Shenzhen DACE Testing Technology Co., Ltd. This document may be altered or revised by Shenzhen DACE Testing Technology Co., Ltd. personnel only, and shall be noted in the revision section of the document. The test results in the report only apply to the tested sample V1.0 Report No.: DACE251225001RF002 102 Building H1 & 1/F., Building H, Hongfa Science & Technology Park, Tangtou, Shiyan, Bao'an District, Shenzhen, Guangdong, China Web:http://www. poce-cert.com Tel: 86-755-29113252 E-mail: [email protected] Page 2 of 14 Revision History Of Report Version Description REPORT No. Issue Date V1.0 Original DACE251225001RF002 January 7, 2026 V1.0 Report No.: DACE251225001RF002 102 Building H1 & 1/F., Building H, Hongfa Science & Technology Park, Tangtou, Shiyan, Bao'an District, Shenzhen, Guangdong, China Web:http://www. poce-cert.com Tel: 86-755-29113252 E-mail: [email protected] Page 3 of 14 CONTENTS 1 GENERAL INFORMATION ............................................................................................................................ 4 1.1 DESCRIPTION OF DEVICE (EUT) .............................................................................................................. 4 1.2 DESCRIPTION OF SUPPORT UNITS ........................................................................................................... 4 1.3 TEST INSTRUMENTS LIST ......................................................................................................................... 4 1.4 STATEMENT OF THE MEASUREMENT UNCERTAINTY ................................................................................. 4 2 EVALUATION RESULTS (E VA L U AT I O N ) ..................................................................................................... 5 2.1 REFER EVAL U AT I O N METHOD ................................................................................................................. 5 2.2 EVALUATION REQUIREMENTS .................................................................................................................. 5 2.3 LIMITS.................................................................................................................................................... 6 2.4 TEST SETUP DIAGRAM ............................................................................................................................ 7 2.5 MEASUREMENT PROCEDURE .................................................................................................................. 7 2.6 EQUIPMENT APPROVAL CONSIDERATIONS ................................................................................................ 8 2.7 TEST RESULT: ........................................................................................................................................ 9 3 TEST SETUP PHOTOS ............................................................................................................................... 12 V1.0 Report No.: DACE251225001RF002 102 Building H1 & 1/F., Building H, Hongfa Science & Technology Park, Tangtou, Shiyan, Bao'an District, Shenzhen, Guangdong, China Web:http://www. poce-cert.com Tel: 86-755-29113252 E-mail: [email protected] Page 4 of 14 1 GENERAL INFORMATION 1.1 Description of Device (EUT) Product Name: ice cooling fan wireless charger Model/Type reference: YX-731 Trade Mark: N/A Power Supply: Input: 5V/2A, 9V/3A, 15V/3A Wireless charging output: 5W/7.5W/10W/15W Operation Frequency: 110-205kHz Modulation Type: ASK Antenna Type: Inductive loop coil Antenna Antenna Gain: 0dBi Hardware Version: V1.0 Software Version: V1.0 1.2 Description of Support Units Title Manufacturer Model No. Serial No. Adapter PHOTON AT X C-069AC65B / Wireless Charging Load Module YBZ V3.x(30W/QI2/MPP) / 1.3 Test Instruments list Test Equipment Manufacturer Model No. SN. Cal.Date (mm-dd-yy) Cal.Due date (mm-dd-yy) Exposure Level Tester Narda ELT-400 N- 0231 2025-12-02 2026-12-01 Exposure Level Tester Narda ELT-400 N- 0231 2025-12-02 2026-12-01 Magnetic field probe 100cm 2 Narda ELT probe 100cm 2 M0675 2025-12-02 2026-12-01 Magnetic field probe 100cm 2 Narda ELT probe 100cm 2 M0675 2025-12-02 2026-12-01 1.4 Statement Of The Measurement Uncertainty Test Item Measurement Uncertainty Exposure Level Tester 0.8dB Note: (1) This uncertainty represents an expanded uncertainty expressed at approximately the 95% confidence level using a coverage factor of k=2. V1.0 Report No.: DACE251225001RF002 102 Building H1 & 1/F., Building H, Hongfa Science & Technology Park, Tangtou, Shiyan, Bao'an District, Shenzhen, Guangdong, China Web:http://www. poce-cert.com Tel: 86-755-29113252 E-mail: [email protected] Page 5 of 14 2 Evaluation Results (Evaluation) 2.1 Refer Evaluation Method ANSI C95.1–1999: IEEE Standard for Safety Levels with Respect to Human Exposure to Radio Frequency Electromagnetic Fields, 3 kHz to 300 GHz. FCC KDB publication 680106 D01 v04 RF …

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V1.0 Report No.: DACE251225001RF001 102, Building H1, & 1/F., Building H, Hongfa Science & Technology Park, Tangtou Community, Shiyan Subdistrict, Bao'an District, Shenzhen, Guangdong, China Web: http://www.dace-lab.com Tel: +86-755-23010613 E-mail: [email protected] Page 1 of 24 RF TEST REPORT For Dongguan City Humen Yongxin Electronic Factory Product Name: ice cooling fan wireless charger Test Model(s): YX-731 Re port Reference No. : DACE251225001RF001 FCC ID : 2 B AYR- YX-731 Ap plicant’s Name : Dongguan City Humen Yongxin Electronic Factory Address : NO.2,hongmian road 1,daning district,Humen town, Dongguan city, China Te sting Laboratory : Shenzhen DACE Testing Technology Co., Ltd. Address : 102, Building H1, & 1/F., Building H, Hongfa Science & Technology Park, Tangtou Community, Shiyan Subdistrict, Bao'an District, Shenzhen, Guangdong, China Test Specification Standard : 47 CFR Part 15 C Dat e of Receipt : December 25, 2025 Date of Test : December 25, 2025 to January 7, 2026 Date of Issue : January 7, 2026 Result : Pass Not e: This report shall not be reproduced except in full, without the written approval of Shenzhen DACE Testing Technology Co., Ltd. This document may be altered or revised by Shenzhen DACE Testing Technology Co., Ltd. personnel only, and shall be noted in the revision section of the document. The test results in the report only apply to the tested sample V1.0 Report No.: DACE251225001RF001 102, Building H1, & 1/F., Building H, Hongfa Science & Technology Park, Tangtou Community, Shiyan Subdistrict, Bao'an District, Shenzhen, Guangdong, China Web: http://www.dace-lab.com Tel: +86-755-23010613 E-mail: [email protected] Page 2 of 24 Apply for company information Applicant’s Name : Dongguan City Humen Yongxin Electronic Factory Address : NO.2,hongmian road 1,daning district,Humen town, Dongguan city, China Product Name : ice cooling fan wireless charger Test Model(s) : YX-731 Test Specification Standard(s) : 47 CFR Part 15 C NOTE1: The manufacturer should ensure that all products in series production are in conformity with the product sample detailed in this report. If the product in this report is used in any configuration other than that detailed in the report, the manufacturer must ensure the new system complies with all relevant standards. Compiled by: Supervised by: Approved by: Amy Zhu / Test Engineer Stone Yin / Project Engineer Tom Chen / Manager January 7, 2026 January 7, 2026 January 7, 2026 V1.0 Report No.: DACE251225001RF001 102, Building H1, & 1/F., Building H, Hongfa Science & Technology Park, Tangtou Community, Shiyan Subdistrict, Bao'an District, Shenzhen, Guangdong, China Web: http://www.dace-lab.com Tel: +86-755-23010613 E-mail: [email protected] Page 3 of 24 Revision History Of Report Version Description REPORT No. Issue Date V1.0 Original DACE251225001RF001 January 7, 2026 V1.0 Report No.: DACE251225001RF001 102, Building H1, & 1/F., Building H, Hongfa Science & Technology Park, Tangtou Community, Shiyan Subdistrict, Bao'an District, Shenzhen, Guangdong, China Web: http://www.dace-lab.com Tel: +86-755-23010613 E-mail: [email protected] Page 4 of 24 CONTENTS 1 TEST SUMMARY ........................................................................................................................................... 5 1.1 TEST STANDARDS .................................................................................................................................. 5 1.2 SUMMARY OF TEST RESULT .................................................................................................................... 5 2 GENERAL INFORMATION ............................................................................................................................ 6 2.1 CLIENT INFORMATION ............................................................................................................................. 6 2.2 DESCRIPTION OF DEVICE (EUT) .............................................................................................................. 6 2.3 DESCRIPTION OF TEST MODES ................................................................................................................ 6 2.4 DESCRIPTION OF SUPPORT UNITS ........................................................................................................... 6 2.5 EQUIPMENTS USED DURING THE TEST .................................................................................................... 7 2.6 STATEMENT OF THE MEASUREMENT UNCERTAINTY ................................................................................. 9 3 EVALUATION RESULTS (E VA L U AT I O N ) ................................................................................................... 10 3.1 ANTENNA REQUIREMENT ....................................................................................................................... 10 3.1.1 Conclusion: ............................................................................................................................. 10 4 RADIO SPECTRUM MATTER TEST RESULTS (RF) .................................................................................. 11 4.1 CONDUCTED EM I S S I O N AT AC POWER LINE ............................................................................................ 11 4.1.1 E.U.T. Operation: ..................................................................................................................... 11 4.1.2 Test Setup Diagram: ................................................................................................................ 11 4.1.3 Test Data: ............................................................................................................................... 12 4.2 20DB OCCUPIED BANDWIDTH ............................................................................................................... 14 4.2.1 E.U.T. Operation: ..................................................................…

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ManufacturerDongguan city Humen Yongxin Electronic FactoryAddress Mode Specification 20250821001.0Ver.001 40.0max 37.0±0.5 18.5±0.5 0.0 6.0ref 7±1 7.0±1 0.80 ±0.1(Thickness ♦、Electrical characteristics: ParameterTest instrument L06.5±10%μH■TH1816B Q>40 min■TH1816B DCR<50mΩ ■CH-502BC ♦、Temp. Grade: Operating temperature -40°C~ 125 °C Serial number Product Name 1Disk 2 Copper wire 3 High- temperatu 4Tin 5Glue 6 Small magnetic disc 7 Operating frequency 8 ANT Gain NO.2,hongmian road 1,daning district,Humen town, Dongguan city, China 100-300kHz (3) Wire used Length: 107.5cm ±1cm TD-BJ20250506001-40 Information (1) Wire diameter: 0.8mm * 24P bare copper wire (2) Number of turns: 11T (4) Does the starting and ending lines intersect? No E F G (5) 8mm high-temperature tape for coil (6) 42.5 round back adhesive is pasted on the back of the magnetic sheet 43.5 * 5.3 * 0.65T double slot narrow slot 0.08 * 24P bare copper wire 8MM high-temperature adhesive 107H yellow glue I ♦、Overall dimensions ( Unit: mm) A B C D SpecificationsTest conditions 20*0.8 0dBi (All measurements were performed radiated and therefore additional antenna gain documentation is not required. ) Product specification sheet 100KHz/1V 100KHz/1V @ 25°C Material List: Serial number+A29:K37 1.6Max H

Setup Appendix Mode: YX-731 FCC ID: 2BAYR-YX-731

Setup Appendix Mode: YX-731 FCC ID: 2BAYR-YX-731