2BEF3-RS7Bluetooth earphones

Page 1 of 5 ReportNo.:STS2605211 APPENDIX-PHOTOGRAPHSOFEUTCONSTRUCTIONALDETAILS Photo1 Photo2 Page 2 of 5 ReportNo.:STS2605211 Photo3 Photo4 Page 3 of 5 ReportNo.:STS2605211 Photo5 Photo6 Page 4 of 5 ReportNo.:STS2605211 Photo7 Photo8 Page 5 of 5 ReportNo.:STS2605211 Photo9 Photo10

FCC ID Label Location The product does not have enough space to place the label, and FCC ID label is reflected in the user manual and package, as below: User Manual: Package: Use after charging for 2 hours 97mm100mm 96mm 96mm 80mm 107mm 104mm 6.0 BT+EDR A NEW WAY TO LISTEN Lightweight and comfortable for all-day wear 37mm 34mm 31mm 20mm 30mm R 210-211979 FCC ID：2BEF3-RS7

Page 1 of 4 ReportNo.:STS2605211 APPENDIX-PHOTOGRAPHSOFEUTCONSTRUCTIONALDETAILS Photo1 Photo2 Antenna Page 2 of 4 ReportNo.:STS2605211 Photo3 Photo4 Page 3 of 4 ReportNo.:STS2605211 Photo5 Photo6 Page 4 of 4 ReportNo.:STS2605211 Photo7

The test results presented in this report relate only to the object tested. This report shall not be reproduced, except in full, without the written approval of the ShenZhen STS Test Services Co., Ltd. MPE Report Report No.:STS2605211H01 Issued for Shenzhen Xingchen International Import and Export Trading Co., Ltd 368, 3rd Floor, Liangji Building, Longhua Street, Longhua District, Shenzhen City, Guangdong Province, China Product Name: Bluetooth earphones Brand Name: N/A Model Name: RS7 Series Model(s): RS10, RS20, RS30 FCC ID: 2BEF3-RS7 Test Standards: FCC 47CFR §2.1093 Page 2 of 10 Report No.: STS2605211H01 TEST REPORT Applicant’s Name ................. : Shenzhen Xingchen International Import and Export Trading Co., Ltd Address .................................. : 368, 3rd Floor, Liangji Building, Longhua Street, Longhua District, Shenzhen City, Guangdong Province, China Manufacturer's Name .......... : Shenzhen Xingchen International Import and Export Trading Co., Ltd Address .................................. : 368, 3rd Floor, Liangji Building, Longhua Street, Longhua District, Shenzhen City, Guangdong Province, China Product Description Product Name ........................ : Bluetooth earphones Brand Name ........................... : N/A Model Name........................... : RS7 Series Model(s) ...................... : RS10, RS20, RS30 Test Standards ..................... : FCC 47CFR §2.1093 447498 D04 Interim General RF Exposure Guidance v01 The test results presented in this report relate only to the object tested. This report shall not be reproduced, except in full, without the written approval of the ShenZhen STS Test Services Co., Ltd. Date of Test Date of receipt of test item ...................... : 09 June 2026 Date (s) of performance of tests.............. : 09 June 2026 ~ 12 June 2026 Date of Issue ........................................... : 12 June 2026 Test Result ............................................... : Pass Testing Engineer : (Aaron Bu) Technical Manager : (Skylar Li) Authorized Signatory : (Bovey Yang) Page 3 of 10 Report No.: STS2605211H01 TABLE OF CONTENTS 1. GENERAL INFORMATION 5 1.1 GENERAL DESCRIPTION OF THE EUT 5 1.2 TEST FACTORY 6 2. FCC 47CFR §2.1093 REQUIREMENT 7 2.1 TEST STANDARDS 7 2.2 LIMIT 7 2.3 TEST RESULT 10 Page 4 of 10 Report No.: STS2605211H01 Revision History Rev. Issue Date Report No. Effect Page Contents 00 12 June 2026 STS2605211H01 ALL Initial Issue Page 5 of 10 Report No.: STS2605211H01 1. GENERAL INFORMATION 1.1 GENERAL DESCRIPTION OF THE EUT Product Name Bluetooth earphones Brand Name N/A Model Name RS7 Series Model(s) RS10, RS20, RS30 Model Difference Only different in model name and appearance Colors. Product Description The EUT is Bluetooth earphones Operation Frequency: 2402 – 2480 MHz Modulation Type: GFSK(1Mbps), π/4-DQPSK(2Mbps), 8DPSK(3Mbps) Antenna gain: 3.35dBi Antenna Designation: Chip Power Rating Inpu-Ear: DC 5V 30mA Inpu-Charging box：DC 5V 200mA Adapter N/A Battery EAR: Model: 451012 Brand: HCYRated Voltage: 3.7 V Charge Limit Voltage: 4.2 V Capacity: 35 mAh Manufacturer: Manufacturer: Shenzhen Hongshengyu Technology Co., Ltd. BOX: Model: 701530 Brand:N/A HCYRated Voltage:3.7 V Charge Limit Voltage: 4.2 V Capacity: 300 mAh Manufacturer: Manufacturer: Shenzhen Hongshengyu Technology Co., Ltd. Hardware Version HF-F531L-56C-V1 Software Version 20260108-V07-C6B73112 710284A9 Sample Number 260604013-1 Page 6 of 10 Report No.: STS2605211H01 1.2 TEST FACTORY SHENZHEN STS TEST SERVICES CO., LTD Add. : 101, Building B, Zhuoke Science Park, No.190 Chongqing Road, ZhanChengShequ, Fuhai Sub-District, Bao’an District, Shenzhen, Guang Dong, China FCC test Firm Registration Number: 625569 IC test Firm Registration Number: 12108A A2LA Certificate No.: 4338.01 Page 7 of 10 Report No.: STS2605211H01 2. FCC 47CFR §2.1093 REQUIREMENT 2.1 TEST STANDARDS Follow the maximum permissible exposure (MPE) limits specified in 447498 D04 Interim General Radio Frequency Exposure Guidelines v01. The gain of the antenna used in the product was extracted from the supplied antenna data sheet and the maximum total power input to the antenna was also measured. Calculate the distance from the product to the MPE limit by the formula. 2.2 LIMIT For single RF sources (i.e., any single fixed RF source, mobile device, or portable device, as defined in paragraph (b)(2) of this section): A single RF source is exempt if: (A) The available maximum time-averaged power is no more than 1 mW, regardless of separation distance. This exemption may not be used in conjunction with other exemption criteria other than those in paragraph (b)(3)(ii)(A) of Part 1.1307. Medical implant devices may only use this exemption and that in paragraph (b)(3)(ii)(A); (B) Or the available maximum time-averaged power or effective radiated power (ERP), whichever is greater, is less than or equal to the threshold Pth (mW) described in the following formula. This method shall only be used at separation distances (cm) from 0.5 centimeters to 40 centimeters and at frequencies from 0.3 GHz to 6 GHz (inclusive). Pth is given by: Page 8 of 10 Report No.: STS2605211H01 (C) Or using below table and the minimum separation distance (R in meters) from the body of a nearby person for the frequency (f in MHz) at which the source operates, the ERP (watts) is no more than the calculated value prescribed for that frequency. For the exemption in Table 1 to apply, R must be at least λ/2π, where λ is the free-space operating wavelength in meters. If the ERP of a single RF source is not easily obtained, then the available maximum time-averaged power may be used in lieu of ERP if the physical dimensions of the radiating structure(s) do not exceed the electrical length of λ/4 or if the antenna gain is less than that of a half-wave dipole (1.64 linear value). RF Source frequency (MHz) Threshold ERP(watts) 0.3-1.34 1,920 R 2 . 1.34-30 3,450 R 2 /f 2 . 30-300 3.83 R 2 . 300-1,500 0.0128 R 2 f. 1,500-100,000 19.2…

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The test results presented in this report relate only to the object tested. This report shall not be reproduced, except in full, without the written approval of the Shenzhen STS Test Services Co., Ltd. Radio Test Report Report No.:STS2605211W01 Issued for Shenzhen Xingchen International Import and Export Trading Co., Ltd 368, 3rd Floor, Liangji Building, Longhua Street, Longhua District, Shenzhen City, Guangdong Province, China Product Name: Bluetooth earphones Brand Name: N/A Model Name: RS7 Series Model(s): RS10, RS20, RS30 FCC ID: 2BEF3-RS7 Test Standards: FCC Part15.247 Page 2 of 88 Report No.: STS2605211W01 TEST REPORT Applicant’s Name ................. : Shenzhen Xingchen International Import and Export Trading Co., Ltd Address .................................. : 368, 3rd Floor, Liangji Building, Longhua Street, Longhua District, Shenzhen City, Guangdong Province, China Manufacturer's Name ........... : Shenzhen Xingchen International Import and Export Trading Co., Ltd Address .................................. : 368, 3rd Floor, Liangji Building, Longhua Street, Longhua District, Shenzhen City, Guangdong Province, China Product Description Product Name ........................ : Bluetooth earphones Brand Name ........................... : N/A Model Name ........................... : RS7 Series Model(s) .................... : RS10, RS20, RS30 Standards .............................. : FCC Part15.247 Test Procedure ....................... : ANSI C63.10-2020+Cor 1-2023 This device described above has been tested by STS, the test results show that the equipment under test (EUT) is in compliance with the FCC requirements. And it is applicable only to the tested sample identified in the report. The test results presented in this report relate only to the object tested. This report shall not be reproduced, except in full, without the written approval of the Shenzhen STS Test Services Co., Ltd. Date of Test Date of receipt of test item .......... : 09 June 2026 Date (s) of performance of tests . : 09 June 2026 ~ 12 June 2026 Date of Issue .............................. : 12 June 2026 Test Result .................................. : Pass Testing Engineer : (Aaron Bu) Technical Manager : (Skylar Li) Authorized Signatory : (Bovey Yang) Page 3 of 88 Report No.: STS2605211W01 Table of Contents Page 1. SUMMARY OF TEST RESULTS 7 1.1 TEST FACTORY 8 1.2 MEASUREMENT UNCERTAINTY 8 2. GENERAL INFORMATION 9 2.1 GENERAL DESCRIPTION OF THE EUT 9 2.2 DESCRIPTION OF THE TEST MODES 11 2.3 FREQUENCY HOPPING SYSTEM REQUIREMENTS 12 2.4 TABLE OF PARAMETERS OF TEST SOFTWARE SETTING 14 2.5 BLOCK DIAGRAM SHOWING THE CONFIGURATION OF SYSTEM TESTED 15 2.6 DESCRIPTION OF NECESSARY ACCESSORIES AND SUPPORT UNITS 16 2.7 EQUIPMENTS LIST 17 3. EMC EMISSION TEST 18 3.1 CONDUCTED EMISSION MEASUREMENT 18 3.2 RADIATED EMISSION MEASUREMENT 22 4. CONDUCTED SPURIOUS & BAND EDGE EMISSION 34 4.1 LIMIT 34 4.2 TEST PROCEDURE 34 4.3 TEST SETUP 34 4.4 EUT OPERATION CONDITIONS 34 4.5 TEST RESULTS 35 5. NUMBER OF HOPPING CHANNEL 36 5.1 LIMIT 36 5.2 TEST PROCEDURE 36 5.3 TEST SETUP 36 5.4 EUT OPERATION CONDITIONS 36 5.5 TEST RESULTS 36 6. AVERAGE TIME OF OCCUPANCY 37 6.1 LIMIT 37 6.2 TEST PROCEDURE 37 6.3 TEST SETUP 37 6.4 EUT OPERATION CONDITIONS 37 6.5 TEST RESULTS 37 7. HOPPING CHANNEL SEPARATION MEASUREMEN 38 Page 4 of 88 Report No.: STS2605211W01 Table of Contents Page 7.1 LIMIT 38 7.2 TEST PROCEDURE 38 7.3 TEST SETUP 38 7.4 EUT OPERATION CONDITIONS 38 7.5 TEST RESULTS 38 8. BANDWIDTH TEST 39 8.1 LIMIT 39 8.2 TEST PROCEDURE 39 8.3 TEST SETUP 39 8.4 EUT OPERATION CONDITIONS 39 8.5 TEST RESULTS 39 9. OUTPUT POWER TEST 40 9.1 LIMIT 40 9.2 TEST PROCEDURE 40 9.3 TEST SETUP 41 9.4 EUT OPERATION CONDITIONS 41 9.5 TEST RESULTS 41 10. ANTENNA REQUIREMENT 42 10.1 STANDARD REQUIREMENT 42 10.2 EUT ANTENNA 42 APPENDIX 1-TEST DATA 43 1. BANDWIDTH 43 1.1 TEST RESULT 43 2. MAXIMUM CONDUCTED OUTPUT POWER 49 2.1 TEST RESULT 49 2.2 TEST GRAPH 50 3. CARRIER FREQUENCY SEPARATION 55 3.1 TEST RESULT 55 3.2 TEST GRAPH 56 4. NUMBER OF HOPPING FREQUENCIES 58 4.1 TEST RESULT 58 4.2 TEST GRAPH 59 5. TIME OF OCCUPANCY (DWELL TIME) 61 Page 5 of 88 Report No.: STS2605211W01 Table of Contents Page 5.1 TEST RESULT 61 5.2 TEST GRAPH 62 6. UNWANTED EMISSIONS IN NON-RESTRICTED FREQUENCY BANDS 71 6.1 TEST RESULT 71 6.2 TEST GRAPH 72 APPENDIX 2-PHOTOS OF TEST SETUP 88 Page 6 of 88 Report No.: STS2605211W01 Revision History Rev. Issue Date Report No. Effect Page Contents 00 12 June 2026 STS2605211W01 ALL Initial Issue Page 7 of 88 Report No.: STS2605211W01 1. SUMMARY OF TEST RESULTS Test procedures according to the technical standards: KDB 558074 D01 15.247 Meas Guidance v05r02. FCC Part 15.247,Subpart C Standard Section Test Item Judgment Remark 15.207 Conducted Emission PASS -- 15.247(a)(1) Hopping Channel Separation PASS -- 15.247(a)(1)&(b)(1) Output Power PASS -- 15.209 Radiated Spurious Emission PASS -- 15.247(d) Conducted Spurious & Band Edge Emission PASS -- 15.247(a)(1)(iii) Number of Hopping Frequency PASS -- 15.247(a)(1)(iii) Dwell Time PASS -- 15.247(a)(1) Bandwidth PASS -- 15.205 Restricted bands of operation PASS -- Part 15.247(d)/part 15.209(a) Band Edge Emission PASS -- 15.203 Antenna Requirement PASS -- Note: (1) ‘N/A’ denotes test is not applicable in this Test Report. (2) All tests are according to ANSI C63.10-2020+Cor 1-2023. Page 8 of 88 Report No.: STS2605211W01 1.1 TEST FACTORY SHENZHEN STS TEST SERVICES CO., LTD Add. : 101, Building B, Zhuoke Science Park, No.190 Chongqing Road, ZhanChengShequ, Fuhai Sub-District, Bao’an District, Shenzhen, Guang Dong, China FCC test Firm Registration Number: 625569 IC test Firm Registration Number: 12108A A2LA Certificate No.: 4338.01 1.2 MEASUREMENT UNCERTAINTY The reported uncertainty of measurement y ±U, where expended uncertainty U is based on a standard uncertainty multiplied by a coverage factor of k=2, providing a level of confidence of approximately 95 %. No. Item Uncertainty 1 RF output power, conducted …

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DIMENSIONS Working Frequency Range 2400 ~2500 MHz Bandwidth 120 MHz ( Min.) Peak Gain 3 .35 dBi (Typ.) Impedance 50 Ohm Return loss 10 dB ( Min) PolarizationLinear Azimuth BeamwidthOmni- directional Operation Temperature( °C) -40 ~85°C Resistance to Soldering Heats 10sec. ( @ 280°C) Termination Ni / Au ( Lead less) The specification is defined on EVB. Dimension and Terminal Config H X D H X D H X D H X D uration Dimension ( mm) Terminal Name L 1.60 ：0. 10 1 Feeding/ GNG W 0 80 ：0 10 2 GND/ Feeding T 0.80 ：0.10 No. H X D H X D H X D H X HXD 深圳市恒信达通信科技有限公司 2.4GHz 1608 Chip Antenna: HXDANT1608- DC-025S Application: WLAN, 802. 11b/g, Bluetooth, WLAN, etc ... Features SMD, high reliability, ultra Impact, Omni-directional ... Part number Information RANT 1608 F 245 C 01 (A) (B) (C) (D) (E) (F) (A) Product Type Chip Antenna ( B) Size Code 1 .6x0.8mm(：0. 1mm) (C) Material High K material ( D) Frequency 2.4 ~ 2.5GHz ( E) Feeding modePIFA & Single Feeding ( F) Antenna type Type=01 Electrical Specification X D H X D H X D H X D H X D Shenzhen Hengxinda Communication Technology Co., Ltd Room 301, No. 8, Sanhe Overseas Chinese No. 2 District, Tongsheng Community, Dalang Street, Longhua District, Shenzhen 1 设计指导 1、原则上，净空区左侧边缘距离板边的间距 L1 应该尽量大， 且 注意与底部电池的间距。 2、净空区的宽度 W 最优为 1.5mm~2mm。 3、净空区的长度 L2 的长度为 2mm~4mm。 H X D H X D H X D H X D H X D H X D H X D H X E al ation Board Reference X D H X D H X 2.4GHz 1608 Chip Antenna: HXDANT1608- DC-025S D H X D H X D v u Electrical Characteristics Return Loss & Radiation ELECTRICAL CHARACTERISTICSS1 1 H X D H X D H X D H X D H X D Radiation Pattern H X D H X D H X D H X Approval shee 2.4GHz 1608 Chip Antenna: HXDANT1608- DC-025S t HXD 深圳市恒信达通信科技有限公司 Page 3 of HXDANT1608- DC-025S 7 Feb. 2024 Radiation Electrical Characteristics H X D H X D H X D H X D H X D H X D H X D H X Approval sheet HXD 深圳市恒信达通信科技有限公司 X D H X D H X 2.4GHz 1608 Chip Antenna: HXDANT1608- DC-025S D Page 4 of H X D H X D HXDANT1608- DC-025S 7 Feb. 2024 Reel and Taping Specification Reel Specification Tapping Specification PackagingType ABWEF G HTψ DP Paper Type 1608 1.90±0.20 3.50±0.20 8.0±0.20 1.75±0. 10 3.5±0.05 4.0±0. 10 2.0±0.05 0.75±0. 10 1.50±0. 10 4.0±0. 1 TYPESIZEAB C D 16087 ” 4K/ Reel 4.0±0.5 4.0±213.5±0.5178±2 H X D H X D H X D H X D H X D H X D H X D H X D H X Approval sheet HXD 深圳市恒信达通信科技有限公司 2.4GHz 1608 Chip Antenna: HXDANT1608- DC-025S Taping Specifications Page 5 of HXDANT1608- DC-025S 7 Feb. 2024 Test ItemProcedure Requirements Ceramic Type Remark ( Reference) Electrical Characterization Fulfill the electrical specification User Spec. Thermal Shock 1 . Preconditioning: 50 ± 10C / 1 hr , then keep for 24 ± 1 hrs at room temp. 2 . Initial measure: Spec: refer Initialspec . 3 . Rapid change of temperature test: - 30 C to +85 C; 100 cycles; 1 5 minutes at Lower category temperature; 1 5 minutes at Upper category temperature. No Visible Damage. Fulfill the electrical specification. MIL-STD-202 107 Temperature Cycling 1 . Initial measure: Spec: refer Initialspec . 2 . 100 Cycles (- 30 C to +85 C) , Soak Mode= 1 (2 Cycle/ hours) . 3 . Measurement at 24 ± 2 Hours after test condition. No Visible Damage. Fulfill the electrical specification. JESD22 JA104 High Temperature Exposure 1 . Initial measure: Spec: refer Initialspec . 2 . Unpowered; 50 0 hours @ T=+ 8 5 C. 3 . Measurement at 24 ± 2 hours after test. No Visible Damage. Fulfill the electrical specification. MIL-STD-202 108 Low Temperature Storage 1 . Initial measure: Spec: refer Initialspec . 2 . Unpowered : 50 0 hours @ T= - 3 0 C. 3 . Measurement at 24 ± 2 hours after test. No Visible Damage. Fulfill the electrical specification. MIL-STD-202 108 Solderability ( SMD Bottom Side) Dipping method : a. Temperature: 235 ± 5 ° C b. Dipping time: 3 ± 0 .5s The solder should cover over 95% of the critical area of bottom side. IEC 60384-21/22 4. 10 Soldering Heat Resistance ( RSH) Preheating temperature: 150 ± 10 ° C. Preheating time: 1 ~ 2 min. Solder temperature: 260 ± 5 ° C. Dipping time: 5 ± 0 .5s No Visible Damage. IEC 60384-21/22 4. 10 Vibration 5 g' s for 20 min. , 12 cycles each of 3 orientations Note: Use 8"X5" PCB .031" thick 7 secure points on, one long side and 2 secure points at corners of opposite sides. Parts mounted within 2" from any secure point. Test from 10-2000 Hz. No Visible Damage. MIL-STD-202 Method 204 Mechanical Shock Three shocks in each direction shall be applied along the three mutually perpendicular axes of the test specimen ( 18 shocks) Peak value: 1,500g’s Duration: 0.5ms Velocity change: 15.4 ft/s Waveform: Half-sine No Visible Damage. MIL-STD-202 Method 213 Humidity Bias 1 . Humidity: 85% R. H. , Temperature:85 ± 2 ° C. 2. Time: 500 ± 24 hours . 3 . Measurement at 24 ± 2 hrs after test condition. No Visible Damage. Fulfill the electrical specification. MIL-STD-202 Method 106 H X D H X D H X D H X D H X D H X D H X D H X D H X Approval sheet HXD 深圳市恒信达通信科技有限公司 Reliability Tabl 2.4GHz 1608 Chip Antenna: HXDANT1608- DC-025S e Page 6 of HXDANT1608- DC-025S 7 Feb. 2024 Board Flex (SMD) 1 . Mounting method : IR-Reflow . PCB Size ( L: 100 × W:40 × T: 1.6mm) 2 . Apply the load in direction of the arrow until bending reaches 2 mm . No Visible Damage.AEC-Q200 005 Ad hes ion Force of 1 .8Kg for 60 seconds. No Vis ible Damage Magnification of 2 0 X or greater may be employed for inspection of the mechanical integrity of the device body terminals and body/ terminal junction. AEC-Q200 006 Physical Dimension A ny applicab le met hod us ing x10 mag nification, micrometers, calipers, gauges, contour projectors, or other measuring equipment, capable of determining the actual specimen dimensions. In accorda nce with specification. JESD22 JB100 RevisionDate Content 1 New Datashee 2023/03/01 t 2 Add 2D radiation characteristi2024/10/23c Revision History H X D H X D H X D H X D H X D H X D H X D H X D H X Approval shee 2.4GHz 1 6 0 8 Chip Antenna: HXDANT1608- DC-025S t HXD 深圳市恒信达通信科技有限公司 Page 7 of HXDANT1608- DC-025S 7 Feb. 2024

Page 1 of 2 FCC ID: Setup photo AC conduction RF conduction Page 2 of 2 FCC ID: RE (Below 1GHz) RE (Above 1GHz)