2A2BY-R6PRO-AWireless Heart Rate Earbuds

Page 1 of 3 1. General Information 1.1 Product Information Manufacturer: Dongguan Huien Electronic Technology Co., Ltd Address of Manufacturer: Room 301, Building of 1, No. 429, Changdong Road, Changping Town, Dongguan city, Guangdong Province, China Product Name: 2.4G Antenna Model Name: HE-108 Frequency Range: 2400MHz - 2483.5MHz Type of Antenna: FPCB Antenna Antenna Gain: 0dBi (Max.) Impedance: 50 ohm Antenna View: Length * Width (2cm * 0.8cm) Page 2 of 3 2. OTA Test 2.1 Gain Frequency Peak Gain (dBi) Polarity 2402MHz 0 Horizontal 2402MHz -0.46 Vertical 2442MHz -1.41 Horizontal 2442MHz -1.69 Vertical 2480MHz -1.87 Horizontal 2480MHz -2.09 Vertical Page 3 of 3 2.2 Radiation Pattern View

Report No: DSP25122054-1&2E FCC ID: 2A2BY-R6PRO-A Annex of Test Report Annex A. EUT External Photos Model: HE-108 EUT View 1 EUT View 2 (Left earphone) Report No: DSP25122054-1&2E FCC ID: 2A2BY-R6PRO-A Annex of Test Report EUT View 3 EUT View 4 Report No: DSP25122054-1&2E FCC ID: 2A2BY-R6PRO-A Annex of Test Report EUT View 5 EUT View 6 Report No: DSP25122054-1&2E FCC ID: 2A2BY-R6PRO-A Annex of Test Report EUT View 7

Report No: DSP25122054-1&2E FCC ID: 2A2BY-R6PRO-A Annex of Test Report Annex D. Label and Information FCC Label Sample Label Size:0.7cm*0.3cm FCC Label Specifications Text is Black in color and is justified. Labels are printed in indelible ink on permanent adhesive backing or silk-screened onto the EUT or shall be affixed at a conspicuous location on the EUT. Where the EUT is constructed in two or more sections connected by wires and marketed together, the above statement is required to be affixed only to the main control unit. When the EUT is so small or for such use that it is not practicable to place the statement on it, the above information shall be placed in a prominent location in the instruction manual or pamphlet supplied to the user or, alternatively, shall be placed on the container in which the device is marketed. FCC Label Location

Report No: DSP25122054-1&2E FCC ID: 2A2BY-R6PRO-A Annex of Test Report Annex B. EUT Internal Photos Model: HE-108 EUT Internal View 1 EUT Internal View 2 Report No: DSP25122054-1&2E FCC ID: 2A2BY-R6PRO-A Annex of Test Report EUT Internal View 3 EUT Internal View 4 FPCB Antenna Report No: DSP25122054-1&2E FCC ID: 2A2BY-R6PRO-A Annex of Test Report EUT Internal View 5

FCC ID: 2A2BY-R6PRO-A RF Exposure Evaluation According to KDB 447498 D01 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, The device has been evaluated to meet general RF exposure requirement. The device can be used in portable exposure condition without restriction. For BR+EDR Max Conducted Power(dBm) Tune-up Power(dBm) Max Tune-up Power(dBm) Max Power(mW) Frequency(MHz) Min. distance(mm) Calc. thresholds limit 3.57 3(±1) 4 2.512 2480 5 0.7911 3.0 For BLE Max Conducted Power(dBm) Tune-up Power(dBm) Max Tune-up Power(dBm) Max Power(mW) Frequency(MHz) Min. distance(mm) Calc. thresholds limit -2.3 -2(±1) -1 0.794 2480 5 0.2500 3.0 So a SAR test is not required

Report No: DSP25122054-1E FCC Test Report Page 1 of 51 FCC TEST REPORT FCC ID: 2A2BY-R6PRO-A Report No. : DSP25122054-1E Applicant : Dongguan Huien Electronic Technology Co., Ltd Product Name : Wireless Heart Rate Earbuds Model Name : HE-108 Test Standard : FCC Part 15.247 Date of Issue : 2025-12-25 Shenzhen CCUT Quality Technology Co., Ltd. 1F, Building 35, Changxing Technology Industrial Park, Yutang Street, Guangming District, Shenzhen, Guangdong, China; (Tel.:+86-755-23406590 website: www.ccuttest.com) This test report is limited to the above client company and the product model only. It may not be duplicated without prior permitted by Shenzhen CCUT Quality Technology Co., Ltd. Report No: DSP25122054-1E FCC Test Report Page 2 of 51 Test Report Basic Information Applicant..................................: Dongguan Huien Electronic Technology Co., Ltd Address of Applicant...............: Room 301, Building of 1, No. 429, Changdong Road, Changping Town, Dongguan city, Guangdong Province, China Manufacturer..........................: Dongguan Huien Electronic Technology Co., Ltd Address of Manufacturer........: Room 301, Building of 1, No. 429, Changdong Road, Changping Town, Dongguan city, Guangdong Province, China Product Name.........................: Wireless Heart Rate Earbuds Brand Name.............................: - Main Model..............................: HE-108 Series Models..........................: See section 1.1 (Page 5) Test Standard..........................: FCC Part 15 Subpart C ANSI C63.4-2014 ANSI C63.10-2020 Date of Test .............................: 2025-12-19 to 2025-12-22 Test Result...............................: PASS Tested By ................................: (Coke Huang) Reviewed By............................: (Lorzix Luo) Authorized Signatory............: (Lahm Peng) Note : This test report is limited to the above client company and the product model only. It may not be duplicated without prior permitted by Shenzhen CCUT Quality Technology Co., Ltd.. All test data presented in this test report is only applicable to presented test sample. Report No: DSP25122054-1E FCC Test Report Page 3 of 51 CONTENTS 1. General Information ....................................................................................................................................................5 1.1 Product Information .............................................................................................................................................5 1.2 Test Setup Information..........................................................................................................................................6 1.3 Compliance Standards ...........................................................................................................................................7 1.4 Test Facilities ........................................................................................................................................................7 1.5 List of Measurement Instruments ..........................................................................................................................8 1.6 Measurement Uncertainty .....................................................................................................................................9 2. Summary of Test Results ........................................................................................................................................... 10 3. Antenna Requirement ............................................................................................................................................... 11 3.1 Standard and Limit.............................................................................................................................................. 11 3.2 Test Result .......................................................................................................................................................... 11 4. Conducted Emissions ................................................................................................................................................ 12 4.1 Standard and Limit.............................................................................................................................................. 12 4.2 Test Procedure.................................................................................................................................................... 12 4.3 Test Data and Results .......................................................................................................................................... 13 5. Radiated Emissions ................................................................................................................................................... 16 5.1 Standard and Limit.............................................................................................................................................. 16 5.2 Test Procedure.................................................................................................................................................... 16 5.3 Test Data and Results .......................................................................................................................................... 18 6. Band-edge Emissions(Radiated) ............................................................................................................................... 22 6.1 Standard and Limit.............................................................................................................................................. 22 6.2 Test Procedure.................................................................................................................................................... 22 6.3 Test Data and Results ............................................................................................…

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Report No: DSP25122054-1&2E FCC ID: 2A2BY-R6PRO-A Annex of Test Report Annex C. Test Photos Conducted Emission Test View 1 Radiated Emission Test View Below 1GHz Report No: DSP25122054-1&2E FCC ID: 2A2BY-R6PRO-A Annex of Test Report Radiated Emission Test View Above 1GHz