2BR8L-K02Multifunctional ring remote control

Shenzhen Qi Yin Technology Co., Ltd. 303, Block 1, Hao Peng Smart Park, No. 141-1, Furui Road, Xin Tian Community, Fuyong Street, Baoan District, Shenzhen, Guangdong Province, China. Attestation Statements Not Covered Entity Applicant & Not Covered Equipment To: Federal Communications Commission Date: Sep. 19, 25 7435 Oakland Mills Road, Columbia, MD 21046, USA Ref: Information Required by Section 2.911(d)(5)(i) & (ii) FCC ID: 2BR8L-K02 Shenzhen Qi Yin 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, established pursuant to § 1.50002 of reference chapter, as an entity producing “covered” communication equipment. The equipment for which authorization is sought is not “covered” telecommunications equipment and video surveillance equipment produced by entities identified on the Commission’s Covered List that prohibited from receiving an equipment authorization pursuant to section § 2.903 of the FCC rules. Sincerely yours, Applicant Signature： Printed Name: Fang Youpeng Title: Manager Address: 303, Block 1, Hao Peng Smart Park, No. 141-1, Furui Road, Xin Tian Community, Fuyong Street, Baoan District, Shenzhen, Guangdong Province, China. Tel.: 0086 0755-68988886 Email: [email protected]

1 | P a g e Shenzhen Qi Yin Technology Co., Ltd. 303, Block 1, Hao Peng Smart Park, No. 141-1, Furui Road, Xin Tian Community, Fuyong Street, Baoan District, Shenzhen, Guangdong Province, China. Attestation Statements To: Federal Communications Commission Date: Sep. 19, 25 7435 Oakland Mills Road, Columbia, MD 21046, USA Subject: Attestation of Compliance with FCC Covered List Software Requirements FCC ID: [2BR8L-K02] Product Name: [Multifunctional ring remote control] This letter serves as an attestation that the equipment identified above ☐ is / ☒ is not (select one) "covered" software as defined under the Federal Communications Commission (FCC) Covered List requirements, as outlined in FCC 22-84 and KDB 986446. Specifically, the undersigned certifies that the equipment for which authorization is sought: 1. Does not contain cybersecurity or anti-virus software produced or provided by Kaspersky Lab, Inc. or any of its successors, assignees, parents, subsidiaries, affiliates, or any entity that has rebranded or relabeled software produced by the aforementioned entities. 2. Does not have the capability to store, run, or deliver any software identified on the FCC Covered List, including but not limited to cybersecurity and anti-virus software. To support this attestation, the appendix evaluation documentation has been prepared and is included in the certification filing. This attestation is based on a thorough evaluation of the device's design, functionality, and software environment. The undersigned affirms that the information provided is accurate and complete to the best of their knowledge. Sincerely yours, Applicant Signature: Printed Name: Fang Youpeng Title: Manger Address: 303, Block 1, Hao Peng Smart Park, No. 141-1, Furui Road, Xin Tian Community, Fuyong Street, Baoan District, Shenzhen, Guangdong Province, China. Tel.: 0086 0755-68988886 Email: [email protected] 2 | P a g e Evaluation regarding to the Covered List Software: Compliance Methodology Evaluation Process Results Device is Inherent compliance ☒ The Chipset(s) used is limited to run the Cybersecurity or anti-virus software. Compliance ☒ The Memory used is limited to run the Cybersecurity or anti-virus software. Compliance ☒ There is storage capacity limitation for store or install the Cybersecurity or anti-virus software. Compliance ☒ Operating system used is limited to run, install or deliver the Cybersecurity or anti-virus software. Compliance Device is not Inherent compliance ☐ Evaluation Based on Software Bill of Materials (SBoM) ☐ Evaluation Based on Scan for Software on the device ☐ Evaluation Based on Filesystem scan ☐ Evaluation Based on Running software check

Shenzhen Qi Yin Technology Co., Ltd. 303, Block 1, Hao Peng Smart Park, No. 141-1, Furui Road, Xin Tian Community, Fuyong Street, Baoan District, Shenzhen, Guangdong Province, China. 9/19/2025 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Subject: Confidentiality Request for: FCC ID: 2BR8L-K02 Pursuant to Sections 0.457 and 0.459 of the Commission’s Rules, we hereby request permanent confidential treatment of the exhibits accompanying this certification application as outlined below :  Block Diagram  Schematics  Operational Description The above exhibits contain trade secrets and/or proprietary information that are not publicly available and materials that the Applicant has spent considerable efforts in developing. Public disclosure of these may be harmful to the Applicant and give an unfair advantage to competitors on the market. Pursuant to DA 04-1705, the applicant also requests temporary confidential treatment of the exhibits outlined below for a period of (up to 180) days from the date of equipment authorization and prior to marketing in the United States to prevent the premature release of any sensitive information. Applicant is aware of their responsibility to notify DERYCOM in the event information regarding the product or the product is made available to the public before the requested period has expired.  User Manual  Internal Photos  Test Setup Photos Sincerely, (Signature) Printed Name: Fang Youpeng Title: Manager Address: 303, Block 1, Hao Peng Smart Park, No. 141-1, Furui Road, Xin Tian Community, Fuyong Street, Baoan District, Shenzhen, Guangdong Province, China. Tel.: 0086 0755-68988886 Email: [email protected]

Shenzhen Qi Yin Technology Co., Ltd. 303, Block 1, Hao Peng Smart Park, No. 141-1, Furui Road, Xin Tian Community, Fuyong Street, Baoan District, Shenzhen, Guangdong Province, China. Date: Sep. 19, 25 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Subject: Agent Authorization for FCC ID: 2BR8L-K02 I, the undersigned, hereby authorize (Shenzhen DL Testing Technology Co., Ltd.) to act on our behalf in all matters relating to this application for equipment certification. Any act carried out by (Shenzhen DL Testing Technology Co., Ltd.) shall have the same effect as our own and I acknowledge that all responsibility for complying with the terms and conditions of certification, as specified by DERYCOM CERTIFICATION SERVICES, INC., still resides with (Shenzhen Qi Yin Technology Co., Ltd.). We 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 Act of 1988, 21 U.S.C. §862, and that no party to the application, as defined in 47 CFR §1.2002(b), is subject to a denial of federal benefits that includes FCC benefits pursuant to that section. Sincerely, Applicant Signature: Printed Name: Fang Youpeng Title: Manager Address: 303, Block 1, Hao Peng Smart Park, No. 141-1, Furui Road, Xin Tian Community, Fuyong Street, Baoan District, Shenzhen, Guangdong Province, China. Tel.: 0086 0755-68988886 Email: [email protected]

FCC ID:2BR8L-K02 EUT PHOTO(External Photos) FCC ID:2BR8L-K02 FCC ID:2BR8L-K02

Label & label location 10mm*5mm FCC ID:2BR8L-K02 Label location

FCC ID:2BR8L-K02 RF Exposure Evaluation According to WS-1 General RF Exposure Guidance v06 and part 2.1093，Unless specifically required by the published RF exposure KDB procedures, standalone 1-g head or body and 10-g extremity SAR evaluation for general population exposure conditions, by measurement or numerical simulation, is not required when the corresponding SAR Test Exclusion Threshold condition(s), listed below, is (are) satisfied. For 100 MHz to 6 GHz and test separation distances ≤ 50 mm, the 1-g and 10-g SAR test exclusion thresholds are determined by the following: [(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 Here, For BLE Mode Max Power(dBm) Tune up Power (dBm) Max. Tune up Power (dBm) Max. Tune up Power (mW) Frequency (MHz) Min. distance (mm) Calc. thresholds limit GFSK -1.5 -2±1 -1 0.79 2402 5 0.25 3.0 So a SAR test is not required

Inverted F Antenna Specification Summary ITEM ANT SPEC Model Name 2.4G ANT Horizontal Vertical 2400MHz 2400MHz2500MHz2400MHz2400MHz 2500MHz Center Frequency -1.73 -0.84 -0.68 -6.15 -3.70 -2.32 MAX. Gain -0.68 Polarization Horizontal and Vertical Azimuth Beam Pattern Omni-directional Impedance 50 Ohm Antenna Length 5.58mm Manufacture ZHUHAI JIELI TECHNOLOGY CO.,LTD Antenna Photo & Length (mm) Horizontal: 2400 MHz 2450 MHz 2500 MHz Power (dBm) Max: 0 Min: -40 Scale: 5/div Gain(dB) Frequency (MHz) Max Min Avg 2400 -1.73178 -30.0815 -8.48713 2450 -0.845801 -38.5605 -7.88012 2500 -0.685586 -24.0318 -6.79139 Vertical: 2400 MHz 2450 MHz 2500 MHz Power (dBm) Max: 0 Min: -30 Scale: 5/div Gain(dB) Frequency (MHz) Max Min Avg 2400 -6.1530 -24.1420 -13.0295 2450 -3.7054 -26.5836 -10.6700 2500 -2.32122 -30.4301 -9.70536 ANT Test Labs：Attestation of Global Compliance Co., Ltd.

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Report No.: DLE-250918002R Test Report Tel: 400-688-3552 Web:www.dl-cert.com Email: [email protected] Page 1 of 39 FCC Part 15C Test Report FCC ID:2BR8L-K02 Applicant: Shenzhen Qi Yin Technology Co., Ltd. Address: 303, Block 1, Hao Peng Smart Park, No. 141-1, Furui Road, Xin Tian Community, Fuyong Street, Baoan District, Shenzhen, Guangdong Province, China. Manufacturer: Shenzhen Qi Yin Technology Co., Ltd. Address: 303, Block 1, Hao Peng Smart Park, No. 141-1, Furui Road, Xin Tian Community, Fuyong Street, Baoan District, Shenzhen, Guangdong Province, China. EUT: Multifunctional ring remote control Trade Mark: N/A Model Number: K02 Date of Receipt: Sep. 02, 2025 Test Date: Sep. 02, 2025 to Sep. 08, 2025 Date of Report: Sep. 08, 2025 Prepared By: Shenzhen DL Testing Technology Co., Ltd. Address: 101-201, Building C, Shuanghuan, No.8, Baoqing Roa Baolong Industrial Zone, Baolong Street, Longgang Shenzhen, Guangdong, China. Applicable Standards: FCC CFR Title 47 Part 15 Subpart C Section 15.247 ANSI C63.10:2013 Test Result: Pass Report Number: DLE-250918002R Prepared (Test Engineer): Dimon Tan Reviewer (Supervisor): Jack Bu Approved (Manager): Jade Yang This test report is based on a single evaluation of one sample of above mentioned products. It is not permitted to be duplicated in extracts without written approval of Shenzhen DL Testing Technology Co., Ltd. C DL-Cert ert DL-Cert DL D L-Cert DL-Cert DL-Cer D L-Cert DL-Cert DL-Cert Cert D L-Cert DL-Cert DL-Cert DL-C DL-Cert D L-Cert DL-Cert DL-Cert DL-Cert ert DL-Cert D L-Cert DL-Cert DL-Cert DL-Cert D DL-Cert DL-Cert D L-Cert DL-Cert DL-Cert DL-Cert DL-Ce DL-Cert DL-Cert D L-Cert DL-Cert DL-Cert DL-Cert DL-Cert Cert DL-Cert DL-Cert D L-Cert DL-Cert DL-Cert DL-Cert DL-Cert DL- DL-Cert DL-Cert DL-Cert D L-Cert DL-Cert DL-Cert DL-Cert DL-Cert DL-Cert ert DL-Cert DL-Cert DL-Cert D L-Cert DL-Cert DL-Cert DL-Cert DL-Cert DL-Cert D DL-Cert DL-Cert DL-Cert DL-Cert D L-Cert DL-Cert DL-Cert DL-Cert DL-Cert DL-Cert DL-C DL-Cert DL-Cert DL-Cert DL-Cert D L-Cert DL-Cert DL-Cert DL-Cert DL-Cert DL-Cert DL-Cert Cert DL-Cert DL-Cert DL-Cert DL-Cert D L-Cert DL-Cert DL-Cert DL-Cert DL-Cert DL-Cert DL DL-Cert DL-Cert DL-Cert DL-Cert DL-Cert D L-Cert DL-Cert DL-Cert DL-Cert DL-Cert DL-Cert ert DL-Cert DL-Cert DL-Cert DL-Cert DL-Cert D L-Cert DL-Cert DL-Cert DL-Cert DL-Cert DL-Ce L-Cert DL-Cert DL-Cert DL-Cert DL-Cert DL-Cert D L-Cert DL-Cert DL-Cert DL-Cert DL-Cert D DL-Cert DL-Cert DL-Cert DL-Cert DL-Cert DL-Cert D L-Cert DL-Cert DL-Cert DL-Cert DL-Cert DL-Cert DL-Cert DL-Cert DL-Cert DL-Cert DL-Cert D L-Cert DL-Cert DL-Cert DL-Cert DL-C L-Cert DL-Cert DL-Cert DL-Cert DL-Cert DL-Cert D L-Cert DL-Cert DL-Cert DL-Cert rt DL-Cert DL-Cert DL-Cert DL-Cert DL-Cert D L-Cert DL-Cert DL-Cert DL-Ce DL-Cert DL-Cert DL-Cert DL-Cert DL-Cert D L-Cert DL-Cert DL-Cert DL Cert DL-Cert DL-Cert DL-Cert DL-Cert D L-Cert DL-Cert DL-Cert DL-Cert DL-Cert DL-Cert DL-Cert D L-Cert DL-Cert DL-C L-Cert DL-Cert DL-Cert DL-Cert D L-Cert DL-Cert rt DL-Cert DL-Cert DL-Cert D L-Cert DL-Ce DL-Cert DL-Cert DL-Cert D L-Cert DL Cert DL-Cert DL-Cert D L-Cert DL-Cert DL-Cert D L-C L-Cert DL-Cert rt DL-Cer DL Shenzhen DL Testing Technology Co., Ltd. Report No.: DLE-250918002R Test Report Tel: 400-688-3552 Web:www.dl-cert.com Email: [email protected] Page 2 of 39 Table of Contents Page 1.VERSION ............................................................................................................... 4 2. SUMMARY OF TEST RESULTS ........................................................................... 5 2.1 TEST FACILITY ............................................................................................................... 6 2.2 MEASUREMENT UNCERTAINTY ................................................................................... 6 3. GENERAL INFORMATION ................................................................................... 7 3.1 GENERAL DESCRIPTION OF EUT ................................................................................ 7 3.2 DESCRIPTION OF TEST MODES ................................................................................... 8 3.3 BLOCK DIGRAM SHOWI…

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