2BATE-VK81Wireless Gaming Headset

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Local Representative Letter For Certification Service in the USA Federal Communications Commission Equipment Authorization Division, Application Processing Branch 7435 Oakland Mills Road Columbia, MD 21048 To whom it may concern Pursuant to Section 2.911(d)(7), of the Commission’s Rules (47 C.F.R.) we attest as follows for the product listed below: FCC ID Model name 2BATE-VK81 VK80, VK81, VK82, VK83, VK85, VK86 We hereby acknowledge as follows: i. both signees confirm that the point of contact accepts responsibility to act as a US- American Representative on behalf of the applicant ii. the point of contact provides the physical U.S. address and email as listed below iii. both parties maintain the requirements of this agreement for no less than one year after the grantee has terminated all marketing and importation or the conclusion of any Commission-related proceeding involving the equipment. iv. An expiration date for this letter does not exist. In case the U.S. agent changes, the grantee is obligated to notify the FCC within 30 days via the granting TCB. US-American Point of Contact Applicant/Approval Holder Signature Date: 2025-9-17 Signature Date: 2025-9-17 Company Name: GLOCERTS TECHNOLOGY INC Shenzhen wei bo technology co., LTD FRN: 0036339737 0033641028 Contact Name: Huiying Fan Wei Chen Address: 19784 SUNKISSED RIDGE DR, RIVERSIDE, CA 92507 Room 601, Tower A, Yousuowei Building, No. 2000, Jiaxian Road, Bantian street, Longgang District, Shenzhen Phone: (626) 588-8039 +86-13620214161 Email: [email protected] [email protected]

FCCID:2BATE-VK81 ExternalPhotos FCCID:2BATE-VK81 FCCID:2BATE-VK81

FCC ID: 2BATE-VK81 Internal photos ANT FCC ID: 2BATE-VK81 FCC ID: 2BATE-VK81

Page 1 of 7 Report No.:AiTSZ-250901015FW3 Note: This device has been tested and found to comply with the standard(s) listed, this test report merely corresponds to the test sample. It is not permitted to copy extracts of these test result without the written permission of the test laboratory. This report shall not be reproduced except in full, without the written approval of Guangdong Asia Hongke Test Technology Limited. If there is a need to alter or revise this document, the right belongs to Guangdong Asia Hongke Test Technology Limited, and it should give a prior written notice of the revision document. This test report must not be used by the client to claim product endorsement. Guangdong Asia Hongke Test Technology Limited B1/F, Building 11, Junfeng Industrial Park, Chongqing Road, Heping Community, Fuhai Street, Bao'an District, Shenzhen, Guangdong, China. RF Exposure evaluation Product Name : Wireless Gaming Headset Brand Name : N/A Model : VK81 Series Model : VK80, VK82, VK83, VK85, VK86 FCC ID : 2BATE-VK81 Applicant : Shenzhen wei bo technology co., LTD Address : Room 601, Tower A, Yousuowei Building, No. 2000, Jiaxian Road, Bantian street, Longgang District, Shenzhen Manufacturer : Shenzhen Xintaiyang Technology Co., Ltd. Address : Room 103, Building 2, Area C, Xinwei 1 Industrial Zone, Xinzhuang Community, Matian Street, Guangming District, Shenzhen City, Guangdong Province, China Standard(s) : 47CFR §1.1310, 47CFR §2.1093 KDB447498 D01 General RF Exposure Guidance v06 Date of Receipt : Sep. 01, 2025 Date of Test : Sep. 01, 2025~ Sep. 20, 2025 Issued Date : Sep. 20, 2025 Issued By: Guangdong Asia Hongke Test Technology Limited B1/F, Building 11, Junfeng Industrial Park, Chongqing Road, Heping Community, Fuhai Street, Bao'an District, Shenzhen, Guangdong, China Tel.: +86 0755-230967639 Fax.: +86 0755-230967639 Reviewed by: Approved by: Aalen.Ye Allen Wang Page 2 of 7 Report No.: AiTSZ-250901015FW3 Report Revise Record Report Version Issued Date Notes M1 Sep. 20, 2025 Initial Release Page 3 of 7 Report No.: AiTSZ-250901015FW3 Contents 1 GENERAL INFORMATION ....................................................................................................................................... 4 1.1 ENVIRONMENTAL CONDITIONS ........................................................................................................................................ 4 1.2 GENERAL DESCRIPTION OF EUT ...................................................................................................................................... 4 1.3 TEST FACILITY .............................................................................................................................................................. 5 1.4 MEASUREMENT UNCERTAINTY ........................................................................................................................................ 5 2 METHOD OF MEASUREMENT ................................................................................................................................ 6 2.1 APPLICABLE STANDARD .................................................................................................................................................. 6 2.2 EVALUATION METHOD AND LIMIT .................................................................................................................................... 6 2.3 MANUFACTURING TOLERANCE ........................................................................................................................................ 7 2.4 EVALUATION RESULT ..................................................................................................................................................... 7 2.5 CONCLUSION ............................................................................................................................................................... 7 Page 4 of 7 Report No.: AiTSZ-250901015FW3 1 GENERAL INFORMATION 1.1 Environmental conditions During the measurement the environmental conditions were within the listed ranges: Normal Temperature: 25°C Relative Humidity: 55 % Air Pressure: 101 kPa 1.2 General Description of EUT Product Name: Wireless Gaming Headset Model/Type reference: VK81 Serial Model: VK80, VK82, VK83, VK85, VK86 Model different: All models are the same except for the model name and color Power Supply: DC 3.7V from battery or DC 5V from external circuit Hardware Version: N/A Software Version: N/A Sample(s) Status: AiTSZ-250901015-1(Normal sample) AiTSZ-250901015-2(Engineer sample) Bluetooth: Supported type: Bluetooth BR/EDR Modulation: GFSK, π/4DQPSK, 8DPSK Operation frequency: 2402MHz~2480MHz Channel number: 79 Channel separation: 1MHz Antenna type: PCB antenna Antenna gain: 3.08dBi 2.4GHz transceiver: Modulation: GFSK Operation frequency: 2402MHz~2480MHz Channel number: 40 Channel separation: 2MHz Antenna type: PCB antenna Antenna gain: 3.08dBi Remark: The above DUT's information was declared by manufacturer. For more detailed features description, please refer to the manufacturer’s specifications or the User's Manual.. Page 5 of 7 Report No.: AiTSZ-250901015FW3 1.3 Test Facility Test Laboratory: Guangdong Asia Hongke Test Technology Limited B1/F, Building 11, Junfeng Industrial Park, Chongqing Road, Heping Community, Fuhai Street, Bao'an District, Shenzhen, Guangdong, China The test facility is recognized, certified or accredited by the following organizations: FCC-Registration No.: 251906 Designation Number: CN1376 Guangdong Asia Hongke Test Technology Limited has been registered and fully described in a report filed with the (FCC) Federal Communications Commission. The acceptance letter from the FCC is maintained in our files. IC —Registration No.: 31737 CAB identifier: CN0165 The 3m Semi-anechoic chamber of Guangdong Asia Hongke Test Technology Limited has been registered by Certification and Engineering Bureau of Industry Canada for radio equipment tes…

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Page 1 of 27 Report No.: AiTSZ-250901015FW2 Note: This device has been tested and found to comply with the standard(s) listed, this test report merely corresponds to the test sample. It is not permitted to copy extracts of these test result without the written permission of the test laboratory. This report shall not be reproduced except in full, without the written approval of Guangdong Asia Hongke Test Technology Limited. If there is a need to alter or revise this document, the right belongs to Guangdong Asia Hongke Test Technology Limited, and it should give a prior written notice of the revision document. This test report must not be used by the client to claim product endorsement. Guangdong Asia Hongke Test Technology Limited B1/F, Building 11, Junfeng Industrial Park, Chongqing Road, Heping Community, Fuhai Street, Bao'an District, Shenzhen, Guangdong, China. TEST REPORT Product Name : Wireless Gaming Headset Brand Name : N/A Model : VK81 Series Model : VK80, VK82, VK83, VK85, VK86 FCC ID : 2BATE-VK81 Applicant : Shenzhen wei bo technology co., LTD Address : Room 601, Tower A, Yousuowei Building, No. 2000, Jiaxian Road, Bantian street, Longgang District, Shenzhen Manufacturer : Shenzhen Xintaiyang Technology Co., Ltd. Address : Room 103, Building 2, Area C, Xinwei 1 Industrial Zone, Xinzhuang Community, Matian Street, Guangming District, Shenzhen City, Guangdong Province, China Standard(s) : FCC CFR Title 47 Part 15 Subpart C Section 15.247 Date of Receipt : Sep. 01, 2025 Date of Test : Sep. 01, 2025~ Sep. 20, 2025 Issued Date : Sep. 20, 2025 Issued By: Guangdong Asia Hongke Test Technology Limited B1/F, Building 11, Junfeng Industrial Park, Chongqing Road, Heping Community, Fuhai Street, Bao'an District, Shenzhen, Guangdong, China Tel.: +86 0755-230967639 Fax.: +86 0755-230967639 Reviewed by: Approved by: Aalen.Ye Allen Wang Page 2 of 27 Report No.: AiTSZ-250901015FW2 Report Revise Record Report Version Issued Date Notes M1 Sep. 20, 2025 Initial Release Page 3 of 27 Report No.: AiTSZ-250901015FW2 Contents 1 TEST SUMMARY .................................................................................................................................................... 4 1.1 TEST STANDARDS ......................................................................................................................................................... 4 1.2 TEST SUMMARY ........................................................................................................................................................... 4 1.3 TEST FACILITY .............................................................................................................................................................. 5 1.4 MEASUREMENT UNCERTAINTY ........................................................................................................................................ 5 2 GENERAL INFORMATION ....................................................................................................................................... 6 2.1 ENVIRONMENTAL CONDITIONS ........................................................................................................................................ 6 2.2 GENERAL DESCRIPTION OF EUT ...................................................................................................................................... 6 2.3 DESCRIPTION OF TEST MODES AND TEST FREQUENCY .......................................................................................................... 7 2.4 SPECIAL ACCESSORIES ................................................................................................................................................... 8 2.5 EQUIPMENT LIST FOR THE TEST ....................................................................................................................................... 8 3 TEST CONDITIONS AND RESULTS ......................................................................................................................... 10 3.1 CONDUCTED EMISSIONS TEST ....................................................................................................................................... 10 3.2 RADIATED EMISSIONS AND BAND EDGE .......................................................................................................................... 13 3.3 MAXIMUM PEAK CONDUCTED OUTPUT POWER ............................................................................................................... 20 3.4 POWER SPECTRAL DENSITY .......................................................................................................................................... 21 3.5 6DB BANDWIDTH ....................................................................................................................................................... 22 3.6 OUT-OF-BAND EMISSIONS ........................................................................................................................................... 23 3.7 ANTENNA REQUIREMENT ............................................................................................................................................. 25 4 TEST SETUP PHOTOGRAPHS OF EUT .................................................................................................................... 26 5 PHOTOS OF EUT .................................................................................................................................................. 27 Page 4 of 27 Report No.: AiTSZ-250901015FW2 1 TEST SUMMARY 1.1 Test Standards The tests were performed according to following standards: FCC Rules Part 15.247: Frequency Hopping, Direct Spread Spectrum and Hybrid Systems that are in operation within the bands of 902-928 MHz, 2400-2483.5 MHz, and 5725-5850 MHz ANSI C63.10: 2013: American National Standard for Testing Unlicensed Wireless Devices KDB558074 D01 15.247 Meas Guidance v05r02: Guidance for C…

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Antenna De scribe Antenna PCB Antenna Gai n 3.08dBi Freque ncy Range 2.4Ghz-2.483Ghz Connect or Type Direct Manufacturer Shenzhen Xintaiyang Technology Co., Ltd. 2：External View Drawing Picture of antenna Address Room 103, Building 2, Area C, Xinwei 1 Industrial Zone, Xinzhuang Community, Matian Street, Guangming District, Shenzhen City 3：Measurement Result 3.1 Return Loss (S11 ) 3.2 Smith Chart 3.3 Gain

Page1of8ReportNo.:AiTSZ-250901015FW2 DutyCycle TestResult ModeChannelOnTime(ms)Period(ms) DutyCycle (%) DutyCycle (linear) DutyCycle Factor(dB) 1/T GFSK1M 00.4120.62565.920.65921.80982.4272 190.4120.62565.900.65901.81112.4272 390.4120.62565.920.65921.80982.4272 GFSK2M 00.2280.62536.450.36454.3834.3860 190.2280.62536.480.36484.37954.3860 390.2280.62536.500.36504.37714.3860 TestGraphs GFSK1M_Channel0GFSK1M_Channel19 GFSK1M_Channel39GFSK2M_Channel0 GFSK2M_Channel19GFSK2M_Channel39 Page2of8ReportNo.:AiTSZ-250901015FW2 ConductedOutputPower TestResult ModeChannel PeakOutputPower (dBm) Limit (dBm) Result GFSK1M 0-4.89≤30PASS 19-5.63≤30PASS 39-6.14≤30PASS GFSK2M 0-4.88≤30PASS 19-5.75≤30PASS 39-6.10≤30PASS TestGraphs PeakOutputPower GFSK1M_Channel0 PeakOutputPower GFSK1M_Channel19 PeakOutputPower GFSK1M_Channel39 PeakOutputPower GFSK2M_Channel0 PeakOutputPower GFSK2M_Channel19 PeakOutputPower GFSK2M_Channel39 Page3of8ReportNo.:AiTSZ-250901015FW2 PowerSpectralDensity TestResult ModeChannelPSD(dBm/3kHz)Limit(dBm/3kHz)Result GFSK1M0-16.350≤8PASS GFSK1M19-17.150≤8PASS GFSK1M39-18.140≤8PASS GFSK2M0-18.010≤8PASS GFSK2M19-19.340≤8PASS GFSK2M39-19.140≤8PASS TestGraphs GFSK1M_Channel0GFSK2M_Channel0 GFSK1M_Channel19GFSK2M_Channel19 GFSK1M_Channel39GFSK2M_Channel39 Page4of8ReportNo.:AiTSZ-250901015FW2 99%Bandwidth TestResult ModeChannelCenterFrequency(MHz)99%BW(MHz) GFSK1M024020.85161 GFSK1M1924400.85430 GFSK1M3924800.85643 GFSK2M024021.6277 GFSK2M1924401.6042 GFSK2M3924801.6260 TestGraphs GFSK1M_Channel0GFSK2M_Channel0 GFSK1M_Channel19GFSK2M_Channel19 GFSK1M_Channel39GFSK2M_Channel39 Page5of8ReportNo.:AiTSZ-250901015FW2 6dBBandwidth TestResult ModeChannel CenterFrequency (MHz) 6dBBandwidth (MHz) Limit (MHz) Result GFSK1M 024020.5300 ≥0.5 PASS 1924400.5300PASS 3924800.5300PASS GFSK2M 024020.8300PASS 1924400.9000PASS 3924800.8700PASS TestGraphs GFSK1M_Channel0GFSK2M_Channel0 GFSK1M_Channel19GFSK2M_Channel19 GFSK1M_Channel39GFSK2M_Channel39 Page6of8ReportNo.:AiTSZ-250901015FW2 ConductedOutOfBandEmission TestResult ModeChannel OOBEmission Frequency (MHz) OOBEmission Level (dBm) Limit (dBm) OverLimit (dB) Result GFSK1M 0 2400.00-48.910-25.52-23.390PASS 9608.11-42.674-25.52-17.154PASS 199759.80-42.978-26.32-16.658PASS 39 2483.50-58.040-26.77-31.270PASS 4959.83-44.121-26.77-17.351PASS GFSK2M 0 2400.00-46.030-26.52-19.510PASS 9607.48-44.842-26.52-18.322PASS 199759.80-43.575-27.31-16.265PASS 39 2483.50-57.440-27.8-29.640PASS 4959.83-46.396-27.8-18.596PASS TestGraphs In-BandReferenceLevel GFSK1M_Channel0 In-BandReferenceLevel GFSK2M_Channel0 OutOfBandEmission GFSK1M_Channel0 OutOfBandEmission GFSK2M_Channel0 Page7of8ReportNo.:AiTSZ-250901015FW2 30.0MHz-25000.0MHz GFSK1M_Channel0 30.0MHz-25000.0MHz GFSK2M_Channel0 In-BandReferenceLevel GFSK1M_Channel19 In-BandReferenceLevel GFSK2M_Channel19 30.0MHz-25000.0MHz GFSK1M_Channel19 30.0MHz-25000.0MHz GFSK2M_Channel19 In-BandReferenceLevel GFSK1M_Channel39 In-BandReferenceLevel GFSK2M_Channel39 Page8of8ReportNo.:AiTSZ-250901015FW2 OutOfBandEmission GFSK1M_Channel39 OutOfBandEmission GFSK2M_Channel39 30.0MHz-25000.0MHz GFSK1M_Channel39 30.0MHz-25000.0MHz GFSK2M_Channel39 **********************EndofReport**********************

FCC ID: 2BATE-VK81 FCC ID: 2BATE-VK81