2A86FWGH-1032.4G Wireless Headphone

Dongguan Biguan Electronics Co., Ltd. Agent Authorization Company: Dongguan Biguan Electronics Co., Ltd. Address: No.7, 7nd Str. YinCheng Rd., Xiabian Village, Chang'an Town, Dongguan City, G.D, China. Product Name: 2.4G Wireless Headphone Model Number(s): WGH-103 Product Description: 2.4G Wireless Headphone We authorize MiCOM Labs Inc., 575 Boulder Court, Pleasanton, California 94566, USA, to act on our behalf on all matters concerning the certification of above named equipment. We declare that MiCOM Labs Inc. is allowed to forward all information related to the approval and certification of equipment to the regulatory agencies as required and to discuss any issues concerning the approval application. Any and all acts carried out by MiCOM Labs on our behalf shall have the same effect as acts of our own. Signature: Date: 2022-11-07 Name: Jin Suo Company: Dongguan Biguan Electronics Co., Ltd.

Report No.: AGC10048221003AP02 Page 1 of 4 EXTERNAL PHOTOS ALL VIEW OF EUT TOP VIEW OF EUT Report No.: AGC10048221003AP02 Page 2 of 4 BOTTOM VIEW OF EUT FRONT VIEW OF EUT Report No.: AGC10048221003AP02 Page 3 of 4 BACK VIEW OF EUT LEFT VIEW OF EUT Report No.: AGC10048221003AP02 Page 4 of 4 RIGHT VIEW OF EUT ****************************************End of Report****************************************

FCC ID Label Location 5mm&20mm FCC ID: 2A86FWGH-103

Report No.: AGC10048221003AP02 Page 1 of 7 INTERNAL PHOTOS OPEN VIEW OF EUT (FIGURE 1) OPEN VIEW OF EUT (FIGURE 2) Report No.: AGC10048221003AP02 Page 2 of 7 OPEN VIEW OF EUT (FIGURE 3) BATTERY VIEW OF EUT Report No.: AGC10048221003AP02 Page 3 of 7 INTERNAL VIEW OF EUT (FIGURE 1) INTERNAL VIEW OF EUT (FIGURE 2) Report No.: AGC10048221003AP02 Page 4 of 7 INTERNAL VIEW OF EUT (FIGURE 3) INTERNAL VIEW OF EUT (FIGURE 4) Report No.: AGC10048221003AP02 Page 5 of 7 INTERNAL VIEW OF EUT (FIGURE 5) INTERNAL VIEW OF EUT (FIGURE 6) Report No.: AGC10048221003AP02 Page 6 of 7 INTERNAL VIEW OF EUT (FIGURE 7) INTERNAL VIEW OF EUT (FIGURE 8) Antenna 1 Antenna 2 Report No.: AGC10048221003AP02 Page 7 of 7 INTERNAL VIEW OF EUT (FIGURE 9) INTERNAL VIEW OF EUT (FIGURE 10) ****************************************End of Report****************************************

RF EXPOSURE EVALUATION 1. PRODUCT INFORMATION Product Description 2.4G Wireless Headphone Model Name WGH-103 FCC ID 2A86FWGH-103 2. EVALUATION METHOD According to 447498 D01 General RF Exposure Guidance v06 The 1-g and 10-g SAR test exclusion thresholds for 100 MHz to 6 GHz at test separation distances ≤ 50 mm are determined by: [(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 3. CALCULATION Antenna 1: P t =2.071dBm=1.61mW The value of the Maximum output power P t is referred to the test report of the CFR47 §15.247. The result for RF exposure evaluation SAR=(1.61mW /5mm) .[√2.406GHz)]=0.50<3.0 for 1-g SAR and ≤ 7.5 for 10-g extremity SAR. Antenna 2: P t =1.420dBm=1.39mW The value of the Maximum output power P t is referred to the test report of the CFR47 §15.247. The result for RF exposure evaluation SAR=(1.39mW /5mm) .[√2.406GHz)]=0.43<3.0 for 1-g SAR and ≤ 7.5 for 10-g extremity SAR. 4. CONCLUSION The SAR evaluation is not required.

Antenna1 (PCB Antenna) 一、Antenna1 Horizontal（STATIONARY WAVE PATTERN） Frequency （MHz） Gain（dBi） Peak Avg 2400 0.5892 -6.2608 2450 -1.7313 -6.581 2500 0.2251 -4.2972 WGH-103 2.4G Antenna 单位：mm 比例：1:1 频率范围Frequency Range (MHz) 2400~2500 二、Antenna1 Vertical（STATIONARY WAVE PATTERN） Frequency （MHz） Gain（dBi） Peak Avg 2400 0.9485 -0.9084 2450 -0.5288 -2.7272 2500 1.7925 -1.8817

Page 1 of 22 Antenna Test Report Report No.: AGC10048221101PA01 PRODUCT DESIGNATION : 2.4G Wireless Headphone BRAND NAME : N/A MODEL NAME : WGH-103 APPLICANT : Dongguan Biguan Electronics Co., Ltd. DATE OF ISSUE : Nov. 25, 2022 REPORT VERSION : V1.0 Attestation of Global Compliance (Shenzhen) Co., Ltd Report No.: AGC10048221101PA01 Page 2 of 22 REPORT REVISE RECORD Report Version Revise Time Issued Date Valid Version Notes V1.0 / Nov. 25, 2022 Valid Initial release Report No.: AGC10048221101PA01 Page 3 of 22 TABLE OF CONTENTS 1. PRODUCT INFORMATON ...................................................................................................................... 4 2. TEST FACILITY ....................................................................................................................................... 5 3. TEST EQUIPMENT LIST ......................................................................................................................... 5 4. MEASUREMENT UNCERTAINTY .......................................................................................................... 5 5. TEST SUMMARY LIST ............................................................................................................................ 5 6. TEST SETUP ........................................................................................................................................... 6 7. TEST RESULTS ....................................................................................................................................... 7 7.1. VSWR ................................................................................................................................................ 7 7.2. GAIN AND EFFICIENCY ................................................................................................................... 8 7.3. RADIATION PATTERN ...................................................................................................................... 9 APPENDIX A: PHOTOGRAPHS OF TEST SETUP .................................................................................. 11 APPENDIX B: PHOTOGRAPHS OF EUT ................................................................................................ 12 Report No.: AGC10048221101PA01 Page 4 of 22 1. PRODUCT INFORMATON General information Applicant Dongguan Biguan Electronics Co., Ltd. Address No.7, 7nd Str. YinCheng Rd., Xiabian Village, Chang'an Town, Dongguan City, G.D, China. Manufacturer Dongguan Biguan Electronics Co., Ltd. Address No.7, 7nd Str. YinCheng Rd., Xiabian Village, Chang'an Town, Dongguan City, G.D, China. Factory Dongguan Biguan Electronics Co., Ltd. Address No.7, 7nd Str. YinCheng Rd., Xiabian Village, Chang'an Town, Dongguan City, G.D, China. Product Designation 2.4G Wireless Headphone Brand Name N/A Test Model WGH-103 Date of receipt of test item Nov. 23, 2022 Date of test Nov. 23, 2022 to Nov. 25, 2022 Report Template AGCRT-ER-PA/V1.0 Technical information Frequency Range 2400MHz-2500MHz Test Frequencies 2400MHz, 2410MHz, 2420MHz, 2430MHz, 2440MHz, 2450MHz, 2460MHz, 2470MHz, 2480MHz, 2490MHz, 2500MHz Antenna Type PCB Antenna Dimensions 12mm*4mm Impedance 50Ω Maximum test values Gain: 2.078dBi; Efficiency: 29.679%; VSWR: 1.229:1 The above equipment was tested by Attestation of Global Compliance (Shenzhen) Co., Ltd. The test results of this report relate only to the tested sample identified in this report. Prepared By Bibo Zhang (Project Engineer) Nov. 25, 2022 Reviewed By Calvin Liu (Reviewer) Nov. 25, 2022 Approved By Max Zhang (Authorized Officer) Nov. 25, 2022 Report No.: AGC10048221101PA01 Page 5 of 22 2. TEST FACILITY 3. TEST EQUIPMENT LIST Equipment Manufacturer Model Cal. Date Cal. Due Antenna Measurement System ETS-Lindgren AMS-8600 Nov. 26, 2021 Nov. 25, 2022 Network Analyzer R&S 101443 Oct. 15, 2022 Oct. 14, 2023 Test Software ETS-Lindgren EMQuest Ver V1.12 N/A 4. MEASUREMENT UNCERTAINTY The uncertainty is calculated using the methods suggested in the “Guide to the Expression of Uncertainty in measurement” (GUM) published by CISPR and ANSI. - Uncertainty of VSWR, Uc = ±1.5dB - Uncertainty of Gain, Uc = ±0.8dB 5. TEST SUMMARY LIST NO. Test item Remark 1 VSWR -- 2 Gain and efficiency -- 3 Radiation pattern -- Test Site Attestation of Global Compliance (Shenzhen) Co., Ltd Location 1-2/F, Building 19, Junfeng Industrial Park, Chongqing Road, Heping Community, Fuhai Street, Bao'an District, Shenzhen, Guangdong, China Report No.: AGC10048221101PA01 Page 6 of 22 6. TEST SETUP Report No.: AGC10048221101PA01 Page 7 of 22 7. TEST RESULTS 7.1. VSWR Frequency(MHz) VSWR 2402 1.106:1 2420 1.229:1 2450 1.174:1 2480 1.117:1 Report No.: AGC10048221101PA01 Page 8 of 22 7.2. GAIN AND EFFICIENCY Frequency(MHz) Efficiency(dB) Efficiency(%) Gain(dBi) 2400 -5.914 25.618 0.791 2410 -5.275 29.679 1.802 2420 -5.460 28.441 2.074 2430 -5.677 27.054 2.078 2440 -6.031 24.934 1.815 2450 -6.411 22.846 0.815 2460 -6.777 21.002 -0.727 2470 -7.202 19.045 -0.770 2480 -6.809 20.847 -0.160 2490 -6.300 23.440 0.111 2500 -6.829 20.751 -0.288 Report No.: AGC10048221101PA01 Page 9 of 22 7.3. RADIATION PATTERN 2D POLAR RADIATION PATTERN FREQUENCY=2400MHZ FREQUENCY=2450MHZ FREQUENCY=2500MHZ Report No.: AGC10048221101PA01 Page 10 of 22 3D RADIATION PATTERN FREQUENCY=2400MHZ FREQUENCY=2450MHZ FREQUENCY=2500MHZ Report No.: AGC10048221101PA01 Page 11 of 22 APPENDIX A: PHOTOGRAPHS OF TEST SETUP Report No.: AGC10048221101PA01 Page 12 of 22 APPENDIX B: PHOTOGRAPHS OF EUT ALL VIEW OF EUT TOP VIEW OF EUT Report No.: AGC10048221101PA01 Page 13 of 22 BOTTOM VIEW OF EUT FRONT VIEW OF EUT Report No.: AGC10048221101PA01 Page 14 of 22 BACK VIEW OF EUT LEFT VIEW OF EUT Report No.: AGC10048221101PA01 Page 15 of 22 RIGHT VIEW OF EUT OPEN VIEW OF EUT (FIGURE 1) Report No.: AGC10048221101PA01 Page 16 of 22 OPEN VIEW OF EUT (FIGURE 2) OPEN VIEW OF EUT (FIGURE 3) Report No.: AGC10048221101PA01 Page 17 of 22 BATTERY VIEW OF EUT INTERNAL VIEW OF E…

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Page 1 of 60 FCC Test Report Report No.: AGC10048221003FE04 FCC ID : 2A86FWGH-103 APPLICATION PURPOSE : Original Equipment PRODUCT DESIGNATION : 2.4G Wireless Headphone BRAND NAME : N/A MODEL NAME : WGH-103 APPLICANT : Dongguan Biguan Electronics Co., Ltd. DATE OF ISSUE : Nov. 03, 2022 STANDARD(S) : FCC Part 15.247 REPORT VERSION : V1.0 Attestation of Global Compliance (Shenzhen) Co., Ltd Report No.: AGC10048221003FE04 Page 2 of 60 REPORT REVISE RECORD Report Version Revise Time Issued Date Valid Version Notes V1.0 / Nov. 03, 2022 Valid Initial Release Report No.: AGC10048221003FE04 Page 3 of 60 TABLE OF CONTENTS 1. VERIFICATION OF COMPLIANCE .................................................................................................................. 5 2. GENERAL INFORMATION .............................................................................................................................. 6 2.1. PRODUCT DESCRIPTION ........................................................................................................................ 6 2.2. TABLE OF CARRIER FREQUENCYS ....................................................................................................... 6 2.3. RELATED SUBMITTAL(S)/GRANT(S) ....................................................................................................... 7 2.4. TEST METHODOLOGY ............................................................................................................................. 7 2.5. SPECIAL ACCESSORIES .......................................................................................................................... 7 2.6. EQUIPMENT MODIFICATIONS ................................................................................................................. 7 2.7. ANTENNA REQUIREMENT ....................................................................................................................... 7 3. MEASUREMENT UNCERTAINTY ................................................................................................................... 8 4. DESCRIPTION OF TEST MODES ................................................................................................................... 9 5. SYSTEM TEST CONFIGURATION ................................................................................................................ 10 5.1. CONFIGURATION OF TESTED SYSTEM ............................................................................................... 10 5.2. EQUIPMENT USED IN TESTED SYSTEM .............................................................................................. 10 5.3. SUMMARY OF TEST RESULTS .............................................................................................................. 10 6. TEST FACILITY ............................................................................................................................................... 11 7. PEAK OUTPUT POWER ................................................................................................................................ 12 7.1. MEASUREMENT PROCEDURE .............................................................................................................. 12 7.2. TEST SET-UP (BLOCK DIAGRAM OF CONFIGURATION) .................................................................... 12 7.3. LIMITS AND MEASUREMENT RESULT .................................................................................................. 13 8. BANDWIDTH .................................................................................................................................................. 17 8.1. MEASUREMENT PROCEDURE .............................................................................................................. 17 8.2. TEST SET-UP (BLOCK DIAGRAM OF CONFIGURATION) .................................................................... 17 8.3. LIMITS AND MEASUREMENT RESULTS ............................................................................................... 17 9. CONDUCTED SPURIOUS EMISSION........................................................................................................... 24 9.1. MEASUREMENT PROCEDURE .............................................................................................................. 24 9.2. TEST SET-UP (BLOCK DIAGRAM OF CONFIGURATION) .................................................................... 24 9.3. MEASUREMENT EQUIPMENT USED .................................................................................................... 24 9.4. LIMITS AND MEASUREMENT RESULT .................................................................................................. 24 10. MAXIMUM CONDUCTED OUTPUT POWER SPECTRAL DENSITY ........................................................ 36 Report No.: AGC10048221003FE04 Page 4 of 60 10.1. MEASUREMENT PROCEDURE ............................................................................................................ 36 10.2. TEST SET-UP (BLOCK DIAGRAM OF CONFIGURATION) .................................................................. 36 10.3. MEASUREMENT EQUIPMENT USED .................................................................................................. 36 10.4. LIMITS AND MEASUREMENT RESULT................................................................................................ 36 11. RADIATED EMISSION ................................................................................................................................. 40 11.1. MEASUREMENT PROCEDURE ............................................................................................................ 40 11.2. TEST SETUP .......................................................................................................................................... 41 11.3. LIMITS AND MEASUREMENT RESULT...............................................................................…

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Report No.: AGC10048221003AP01 Page 1 of 2 TEST SETUP PHOTOS RADIATED EMISSION TEST SETUP BELOW 1GHz RADIATED EMISSION TEST SETUP ABOVE 1GHz Report No.: AGC10048221003AP01 Page 2 of 2 AC POWER LINE CONDUCTED TEST SETUP RF CONDUCTED TEST SETUP ****************************************End of Report*************************************