2BBGF-S501HCOROS HYDROP

Guangdong COROS Sports Technology Co., Ltd Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Date: 2026-03-30 SUBJECT: (FCC ID: 2BBGF-S501H) To Whom It May Concern: I, the undersigned, hereby states this equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules, and will apply the Supplier's Declaration of Conformity procedure to the class B computer peripheral portion of this composite device. I understand the following FCC requirements: 1. Devices subject to the SDoC procedure are required to be tested to show compliance with the FCC technical regulations by a recognized accredited testing laboratory. The testing laboratory must be accredited by a Commission approved accreditation body or designated under the terms of a government-to-government Mutual Recognition Agreement (MRA). A listing of those accredited testing laboratories that have been recognized by the Commission is published on the FCC Webpage: https://apps.fcc.gov/oetcf/eas/reports/TestFirmSearch.cfm (Select the "accredited" option to search for FCC recognized accredited test firms.) 2. Pt 2.1077 contains the list of information that must be included in the Supplier's Declaration of Conformity, which must be supplied with each product sold. The SDoC compliance info shall be included in the User’s Manual or as a separate sheet. The info must contain the name, address, and phone number of the responsible party, which must be located within the United States. According to 2.909(b), the responsible party is either the Manufacturer or if the product is imported the Importer. Regards, Contact Person: Applicant: Qiang Wu Telephone: 0769-88775505 E-Mail: [email protected]

Guangdong COROS Sports Technology Co., Ltd

\\192.168.10.16\Regulatory\2. Report\2025\TCEA250700626\TCF\FCC\POA_Letter.docx Guangdong COROS Sports Technology Co., Ltd Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Date: 2026-03-30 FCC ID: 2BBGF-S501H To Whom It May Concern: We, the undersigned, hereby authorize Yuri Yang at Sushi TOWE Wireless Testing (Shenzhen) Co., Ltd. on our behalf, to apply to the Federal Communications Commission on our equipment. Any and all acts carried out by Sushi TOWE Wireless Testing (Shenzhen) 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, (Must be signed by the person that is listed on the FCC Website) Contact Person: Applicant: Qiang Wu Telephone: 0769-88775505 E-Mail: [email protected]

Federal Communications Commission Authorization and Evaluation Division Confidentiality Request regarding application for certification of FCC ID: 2BBGF-S501H Pursuant to Sections 0.457 and 0.459 of the Commission’s Rules, we hereby request confidential treatment of information accompanying this application as outlined below: Exhibit Type Block Diagram Schematics Operational Description, Parts List 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 Commission’s public notice, we also request temporary confidential treatment of information accompanying this application as outlined below for a period of 180 days: Exhibit Type External Photos Internal Photos Test Setup Photos Manual Sincerely, WuQiang

Guangdong COROS Sports Technology Co., Ltd Add: Room 601, Room 701, Building 2, No. 2, Science and Technology 9 Rd, Songshan Lake Hi Tech Zone, Dongguan City, Guangdong Province, China Tel: 0769-88775505 Email: [email protected] FCC Confidential Authorization Date: 2026-03-30 FEDERAL COMMUNICATIONS COMMISSIONS Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Subject: Confidentiality Request regarding application for certification of FCC ID: 2BBGF-S501H In accordance with Sections 0.457 and 0.459 of the Commission’s Rules, (Guangdong COROS Sports 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 ：Qiang Wu Title：Engineer QA-FR-171-A

Guangdong COROS Sports Technology Co., Ltd COROS

Sushi TOWE Wireless Testing (Shenzhen) Co., Ltd. Report No.: TCEA25070062602 Sushi TOWE Wireless Testing(Shenzhen) Co., Ltd. Email: [email protected] Tel.: +86-755-27212361 TOWE-QP-15-F05 Rev.1.1 All rights reserved. Unless otherwise specified, no part of this report may be reproduced or utilized in any part, form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from TOWE. TEST REPORT Applicant: Guangdong COROS Sports Technology Co., Ltd EUT Description: COROS HYDROP Model: S501H Brand: COROS FCC ID: 2BBGF-S501H Standards: FCC 47 CFR Part 1.1307 FCC 47 CFR Part 2.1093 Date of Receipt: 2025/10/11 Date of Issue: 2025/11/03 TOWE. tested the above equipment in accordance with the requirements set forth in the above standards. The test results show that the equipment tested is capable of demonstrating compliance with the requirements as documented in this report. the results documented in this report apply only to the tested sample, under the conditions and modes of operation as described herein. It is the manufacturer's responsibility to assure that additional production units of the model are manufactured with identical electrical and mechanical components. All sample tested were in good operating condition throughout the entire test program. Measurement Uncertainties are published for informational purposes only and were not taken into account unless noted otherwise. without written approval of TOWE, the test report shall not be reproduced except in full. Jim Huang Approved By: Carey Chen Reviewed By: Page 2 / 7 Report No.: TCEA25070062602 Sushi TOWE Wireless Testing(Shenzhen) Co., Ltd. Email: [email protected] Tel.: +86-755-27212361 TOWE-QP-15-F05 Rev.1.1 All rights reserved. Unless otherwise specified, no part of this report may be reproduced or utilized in any part, form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from TOWE. Revision History Rev. Issue Date Description Revised by 01 2025/11/03 Original Carey Chen Page 3 / 7 Report No.: TCEA25070062602 Sushi TOWE Wireless Testing(Shenzhen) Co., Ltd. Email: [email protected] Tel.: +86-755-27212361 TOWE-QP-15-F05 Rev.1.1 All rights reserved. Unless otherwise specified, no part of this report may be reproduced or utilized in any part, form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from TOWE. Table of Contents 1 General Description .............................................................................................................................. 4 1.1 Lab Information ...................................................................................................................... 4 1.1.1 Testing Location ................................................................................................................ 4 1.1.2 Test Facility / Accreditations ............................................................................................. 4 1.2 Client Information ................................................................................................................... 4 1.2.1 Applicant ............................................................................................................................ 4 1.2.2 Manufacturer ..................................................................................................................... 4 1.3 Product Information ............................................................................................................... 5 2 RF Exposure Compliance Requirement ............................................................................................. 6 2.1 Limit ......................................................................................................................................... 6 3 RF Exposure Results ............................................................................................................................ 7 Page 4 / 7 Report No.: TCEA25070062602 Sushi TOWE Wireless Testing(Shenzhen) Co., Ltd. Email: [email protected] Tel.: +86-755-27212361 TOWE-QP-15-F05 Rev.1.1 All rights reserved. Unless otherwise specified, no part of this report may be reproduced or utilized in any part, form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from TOWE. 1 General Description 1.1 Lab Information 1.1.1 Testing Location These measurements tests were conducted at the Sushi TOWE Wireless Testing(Shenzhen) Co., Ltd. facility located at F401 and F101, Building E, Hongwei Industrial Zone, Liuxian 3rd Road, Bao'an District, Shenzhen, China. The measurement facility is compliant with the test site requirements specified in ANSI C63.4-2014 Tel.: +86-755-27212361 Contact Email: [email protected] 1.1.2 Test Facility / Accreditations A2LA (Certificate Number: 7088.01) This laboratory is accredited in accordance with the recognized International Standard ISO/IEC 17025:2017 General requirements for the competence of testing and calibration laboratories. This accreditation demonstrates technical competence for a defined scope and the operation of a laboratory quality management system (refer to joint ISO-ILAC-IAF Communiqué dated April 2017). FCC Designation No.: CN1353 Sushi TOWE Wireless Testing(Shenzhen) Co., Ltd. has been recognized as an accredited testing laboratory. Designation Number: CN1353. ISED CAB identifier: CN0152 Sushi TOWE Wireless Testing(Shenzhen) Co., Ltd. has been recognized by ISED as an accredited testing laboratory. CAB identifier: CN0152 Company Number: 31000 1.2 Client Information 1.2.1 Applicant Applicant: Guangdong COROS Sports Technology Co., Ltd Address: Room 601,Room 701,Building 2,No.2,Science and Technology 9 Rd,Songshan Lake Hi Tech Zone,Dongguan City,Guangdong Province,P.R.China 1.2.2 Manufacturer Manufacturer: Guangdong COROS Sports Te…

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Sushi TOWE Wireless Testing (Shenzhen) Co., Ltd. Report No.: TCEA25070062601 Sushi TOWE Wireless Testing(Shenzhen) Co., Ltd. Email: [email protected] Tel.: +86-755-27212361 TOWE-QP-15-F05 Rev.1.1 All rights reserved. Unless otherwise specified, no part of this report may be reproduced or utilized in any part, form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from TOWE. TEST REPORT Applicant: Guangdong COROS Sports Technology Co., Ltd EUT Description: COROS HYDROP Model: S501H Brand: COROS FCC ID: 2BBGF-S501H Standards: FCC 47 CFR Part 15 Subpart C Date of Receipt: 2025/10/11 Date of Test: 2025/10/11 to 2025/11/03 Date of Issue: 2025/11/03 TOWE. tested the above equipment in accordance with the requirements set forth in the above standards. The test results show that the equipment tested is capable of demonstrating compliance with the requirements as documented in this report. the results documented in this report apply only to the tested sample, under the conditions and modes of operation as described herein. It is the manufacturer's responsibility to assure that additional production units of the model are manufactured with identical electrical and mechanical components. All sample tested were in good operating condition throughout the entire test program. Measurement Uncertainties are published for informational purposes only and were not taken into account unless noted otherwise. without written approval of TOWE, the test report shall not be reproduced except in full. Jim Huang Approved By: Carey Chen Reviewed By: Page 2 / 50 Report No.: TCEA25070062601 Sushi TOWE Wireless Testing(Shenzhen) Co., Ltd. Email: [email protected] Tel.: +86-755-27212361 TOWE-QP-15-F05 Rev.1.1 All rights reserved. Unless otherwise specified, no part of this report may be reproduced or utilized in any part, form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from TOWE. Revision History Rev. Issue Date Description Revised by 01 2025/11/03 Original Carey Chen Page 3 / 50 Report No.: TCEA25070062601 Sushi TOWE Wireless Testing(Shenzhen) Co., Ltd. Email: [email protected] Tel.: +86-755-27212361 TOWE-QP-15-F05 Rev.1.1 All rights reserved. Unless otherwise specified, no part of this report may be reproduced or utilized in any part, form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from TOWE. Summary of Test Results Clause FCC Part Test Items Result 4.1 §15.203/15.247(b) Antenna Requirement PASS 4.2 §15.207 AC Power Line Conducted Emission PASS 4.3 §15.247 (b)(3) Output Power PASS 4.4 §15.247 (a)(2) Occupied Bandwidth Reporting purposes only 4.5 §15.247 (e) Power Spectral Density PASS 4.6 §15.247(d) Band Edge for Conducted Emissions PASS 4.7 §15.247(d) Spurious RF Conducted Emissions PASS 4.8 §15.205 §15.209 Radiated Spurious emissions and Band Edge PASS Test Method: ANSI C63.10:2020, KDB 558074 D01 15.247 Mesa Guidance v05r02. Remark: Pass is EUT meets standard requirements. Page 4 / 50 Report No.: TCEA25070062601 Sushi TOWE Wireless Testing(Shenzhen) Co., Ltd. Email: [email protected] Tel.: +86-755-27212361 TOWE-QP-15-F05 Rev.1.1 All rights reserved. Unless otherwise specified, no part of this report may be reproduced or utilized in any part, form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from TOWE. Table of Contents 1 General Description .............................................................................................................................. 5 1.1 Lab Information ...................................................................................................................... 5 1.1.1 Testing Location ................................................................................................................ 5 1.1.2 Test Facility / Accreditations ............................................................................................. 5 1.2 Client Information ................................................................................................................... 5 1.2.1 Applicant ............................................................................................................................ 5 1.2.2 Manufacturer ..................................................................................................................... 5 1.3 Product Information ............................................................................................................... 6 2 Test Configuration ................................................................................................................................ 7 2.1 Test Channel ........................................................................................................................... 7 2.2 Worst-case configuration and Mode .................................................................................... 8 2.3 Support Unit used in test ....................................................................................................... 8 2.4 Test Environment ................................................................................................................... 8 2.5 Test RF Cable .......................................................................................................................... 8 2.6 Modifications .......................................................................................................................... 8 2.7 Test Setup Diagram ................................................................................................................ 9 2.7.1 Conducted Configuration .................................................................................................. 9 2.7.2 Radiated Configuration ..................................................................…

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S501H Antenna information Model: S501H_2.4GHz_ANT Antenna Type: IFA–Antenna Frequency: 2.4GHz Manufacturer: Shenzhen Zhongtianxun Communication Technology CO., Ltd. Address1：No. 34, Shilong Avenue, Shiyan Sub-district, Bao'an District, Shenzhen City, Guangdong Province, China 1 Cable loss：0.3dB 3 Antenna pattern：As fllow (@2480MHz) Phi=0： Phi=90： theat=90： 4 Antenna size：