2BU8P-XTUMIC1Wireless Microphone

Shenzhen Gkuvision Technology Co., Ltd. Covered Equipment Certification Attestation Letter 6/26/2026 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA ATTN.: Reviewing Engineer FCC ID: 2BU8P-XTUMIC1 Shenzhen Gkuvision Technology Co., Ltd.(“the applicant”) certifies that the equipment for which authorization is sought is not “covered” equipment prohibited from receiving an equipment authorization pursuant to section 2.903 of the FCC rules. Note: If the equipment for which the applicant seeks authorization is produced by any of the entities identified on the current Covered List , the applicant should include an explanation on why the equipment is not “covered” equipment. Shenzhen Gkuvision Technology Co., Ltd.(“the applicant”) certifies that, as of the date of the filing of the application, the applicant is not identified on the Covered List (as a specifically named entity or any of its subsidiaries or affiliates)as an entity producing “covered” equipment. Shenzhen Gkuvision Technology Co., Ltd. (“the applicant”) certifies that the equipment for which authorization is sought does not include cybersecurity or anti-virus software produced or provided by Kaspersky Lab, Inc. or any of its successors and assignees, including equipment with integrated Kaspersky Lab, Inc. (or any of its successors and assignees) cybersecurity or anti-virus software pursuant to DA-24-886 and KDB 986446 D01 Covered Equipment Guidance section B(2a). Signed: Printed name: zile yang Title: CEO Company Name: Shenzhen Gkuvision Technology Co., Ltd. Date: 6/26/2026

Shenzhen Gkuvision Technology Co., Ltd. 6/26/2026 Federal Communications Commission Authorization & Evaluation Division 7345 Oakland Mills Road Columbia, Maryland 21046 Authority to Act asAgent On our behalf, I appointShenzhen DL Testing Technology Co., Ltd. (101-201, Comprehensive Building,Tongzhou Electronics Longgang Factory Area, No.1 Baolong Fifth Road, Baolong Community, Baolong Street, Longgang District, Shenzhen,China) to act as our agent in the preparation of this application for equipment certification. I certify that submitted documents properly describe the device or system for which equipment certification is sought. I also certify that each unit manufactured, imported or marketed, as defined in the Federal Communications Commission’s regulations will have affixed to it a label identical to that submitted for approval with this application. Forinstanceswhereourauthorizedagentsignstheapplicationforcertificationonourbehalf acknowledgethatallresponsibilityforcomplyingwiththetermsandconditionsforcertification,stil lresideswithShenzhen Gkuvision Technology Co., Ltd. (F13th, 1A Building, International Innovation Vally, Nanshan District, Shenzhen, Guangdong, 518055, China) Signed: Printed name: zile yang Title: CEO Company Name: Shenzhen Gkuvision Technology Co., Ltd. Date: 6/26/2026

Shenzhen Gkuvision Technology Co., Ltd. 6/26/2026 Federal Communications Commission Authorization & Evaluation Division 7345 Oakland Mills Road Columbia, Maryland 21046 RE: LETTER OF AGENT AUTHORIZATION To Whom It May Concern: We, the undersigned, hereby authorize Compliance Testing, LLCto act on our behalf in all matters relating to application for equipment authorization, including the signing of all documents relating to these matters. We also hereby certify that no party to the application authorized hereunder is subject to the denial of benefits, including FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C.853(a). Sincerely, Signed: Printed name: zile yang Title: CEO Company Name: Shenzhen Gkuvision Technology Co., Ltd. Date: 6/26/2026

DATE: June 26, 2026 Equipment Autorisation Division Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 FCC ID: 2BU8P-XTUMIC1 Product Name: Wireless Microphone Request for Confidentiality Pursuant to Sections 0.457 and 0.459 of the commission’s rules, we hereby request that the following documents be held confidential: (List here the documents for which you are seeking confidentiality – for example ...)  Schematics  Block diagram  Operation description These materials contain trade secrets and proprietary information and are not customarily released to the public. The public disclosure of this information might be harmful to the company and provide unjustified benefits to our competitors. In additional to above mentioned documents, in order to comply with the marketing regulations in Title 47 CFR §2.803 and the importation rules in Title 47 CFR §2.1204, while ensuring that business sensitive information remains confidential until the actual marketing of newly authorized devices, we request Short Term Confidentiality of the following attachment(s);  External Photos  Internal Photos  User Manual For 45 days, pursuant to Public Notice DA 04-1705. OR For 180 days pursuant to KDB 726920 D01. It is our understanding that all measurement test reports, FCC ID label format and correspondence during the certification review process cannot be granted as confidential documents and this information will be available for public review once the grant of equipment authorization is issued. Signed: Printed name: zile yang Title: CEO Company Name: Shenzhen Gkuvision Technology Co., Ltd. Date: Jun. 26, 2026

Shenzhen Gkuvision Technology Co., Ltd. Statement We ShenzhenGkuvisionTechnologyCo.,Ltd.   HerebyDeclarethat TheproductWirelessMicrophone , modelsno.XTUMic1,XTUMic2,XTUMic3,XTUMic4,XTU Mic5,XTUMic6,XTUMic7,XTUMic8,XTUMic9,XTUMic Nano,XTUMicUltra areallmodel'sthefunction,softwareandelectriccircuitare thesame,onlywithmodelnameddifferent.Testsample model:XTUMic1.  Yourassistanceonthismatterishighlyappreciated. Yourssincerely,  Signature: Printname:zileyang Title:CEO Email:[email protected] Telephone:18665619325 Companyname:ShenzhenGkuvisionTechnologyCo.,Ltd.

FCC ID LABEL: Ca. 25mm x 10mm Label Location FCC ID: 2BU8P-XTUMIC1

Page 1 of 1 FCC RF Exposure EUT Description: Wireless Microphone Model No.: XTU Mic 1 FCC ID: 2BU8P-XTUMIC1 1. Limits According to KDB 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: Result=P/D*√F F= the RF channel transmit frequency in GHz P=Maximum turn‐up power in mw D=Min. test separation distance in mm 2. Test Result of RF Exposure Evaluation Frequency (MHz) Output power (dBm) Tune Up Power (dBm) Max Tune Up power (mW) Min test separation distance (mm) Result Limit SAR Test Exclusion BLE 2440 -2.31 -2±1(-1) 0.794 5 0.248 3.0 Pass Note: PK Output power= conducted power. Conducted power see the test report DLE-260618006R, antenna gain = -4.13dBi Per KDB 447498 D01, when the minimum test separation distance is < 5 mm, a distance of 5 mm is applied to determine SAR test exclusion. The test exclusion threshold is 0.248 which is<= 3, SAR testing is not required. Note: Exclusion Thresholds Results=[(max. power of channel, including tune-up tolerance, mW)/(min. test separation distance, mm)] ·[√f(GHz)] f(GHz) is the RF channel transmit frequency in GHz Distance=5mm

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Report No.: DLE-260 618006 R Te st Report Tel: 400-688-3552 Web:www.dl-cert.com Email: [email protected] Page 1 of 39 FCC Part 15C Te st Report FCC ID: 2BU8P-XTUMIC1 Applican t: Shenzhen Gkuvision Technology Co., Ltd. Address: F13th, 1A Building, International Innovation Vally, Nanshan District, Shenzhen, Guangdong, 518055, China Manufacturer: Shenzhen Gkuvision Technology Co., Ltd. Address: F13th, 1A Building, International Innovation Vally, Nanshan District, Shenzhen, Guangdong, 518055, China Product Name: Wireless Microphone Trade Mark: N/A Model Numb er: XTU Mic 1, XTU Mic 2, XTU Mic 3, XTU Mic 4, XTU Mic 5, XTU Mic 6, XTU Mic 7, XTU Mic 8, XTU Mic 9, XTU Mic Nano, XTU Mic Ultra Date of Receipt: Apr. 14, 2026 Test Date: Apr. 14, 2026 ~ Jun. 18, 2026 Date of Report: Jun. 18, 2026 Prepared By: Shenzhen DL Testing Technology Co., Ltd. Address: 101-201, Comprehensive Building, Tongzhou Electronics Longgang Factory Area, No.1 Baolong Fifth Road, Baolong Community, Baolong Street, Longgang District, Shenzhen, China Applicable Standards: 47 CFR FCC Part 15 Subpart C 15.247 KDB 558074 D01 15.247 Meas Guidance v05r02 ANSI C63.10: 2020 Test Result: Pass Report Number: DLE-260618006R Prepared by(Engineer): Ken Tan Reviewer(Supervisor): Jack Bu Approved(Manager): Jade Yang This test report is based on a single evaluation of one sample of above mentioned products. It is not permitted to be duplicated in extracts without written approval of Shenzhen DL Testing Technology Co., Ltd. C DL-Cert ert DL-Cert DL D L-Cert DL-Cert DL-Cer D L-Cert DL-Cert DL-Cert Cert D L-Cert DL-Cert DL-Cert DL-C DL-Cert D L-Cert DL-Cert DL-Cert DL-Cert ert DL-Cert D L-Cert DL-Cert DL-Cert DL-Cert D DL-Cert DL-Cert D L-Cert DL-Cert DL-Cert DL-Cert DL-Ce DL-Cert DL-Cert D L-Cert DL-Cert DL-Cert DL-Cert DL-Cert Cert DL-Cert DL-Cert D L-Cert DL-Cert DL-Cert DL-Cert DL-Cert DL- DL-Cert DL-Cert DL-Cert D L-Cert DL-Cert DL-Cert DL-Cert DL-Cert DL-Cert ert DL-Cert DL-Cert DL-Cert D L-Cert DL-Cert DL-Cert DL-Cert DL-Cert DL-Cert D DL-Cert DL-Cert DL-Cert DL-Cert D L-Cert DL-Cert DL-Cert DL-Cert DL-Cert DL-Cert DL-C DL-Cert DL-Cert DL-Cert DL-Cert D L-Cert DL-Cert DL-Cert DL-Cert DL-Cert DL-Cert DL-Cert Cert DL-Cert DL-Cert DL-Cert DL-Cert D L-Cert DL-Cert DL-Cert DL-Cert DL-Cert DL-Cert DL DL-Cert DL-Cert DL-Cert DL-Cert DL-Cert D L-Cert DL-Cert DL-Cert DL-Cert DL-Cert DL-Cert ert DL-Cert DL-Cert DL-Cert DL-Cert DL-Cert D L-Cert DL-Cert DL-Cert DL-Cert DL-Cert DL-Ce L-Cert DL-Cert DL-Cert DL-Cert DL-Cert DL-Cert D L-Cert DL-Cert DL-Cert DL-Cert DL-Cert D DL-Cert DL-Cert DL-Cert DL-Cert DL-Cert DL-Cert D L-Cert DL-Cert DL-Cert DL-Cert DL-Cert DL-Cert DL-Cert DL-Cert DL-Cert DL-Cert DL-Cert D L-Cert DL-Cert DL-Cert DL-Cert DL-C L-Cert DL-Cert DL-Cert DL-Cert DL-Cert DL-Cert D L-Cert DL-Cert DL-Cert DL-Cert rt DL-Cert DL-Cert DL-Cert DL-Cert DL-Cert D L-Cert DL-Cert DL-Cert DL-Ce DL-Cert DL-Cert DL-Cert DL-Cert DL-Cert D L-Cert DL-Cert DL-Cert DL Cert DL-Cert DL-Cert DL-Cert DL-Cert D L-Cert DL-Cert DL-Cert DL-Cert DL-Cert DL-Cert DL-Cert D L-Cert DL-Cert DL-C L-Cert DL-Cert DL-Cert DL-Cert D L-Cert DL-Cert rt DL-Cert DL-Cert DL-Cert D L-Cert DL-Ce DL-Cert DL-Cert DL-Cert D L-Cert DL Cert DL-Cert DL-Cert D L-Cert DL-Cert DL-Cert D L-C L-Cert DL-Cert rt DL-Cer DL Shenzhen DL Testing Technology Co., Ltd. Report No.: DLE-260618006R Test Report Tel: 400-688-3552 Web:www.dl-cert.com Email: [email protected] Page 2 of 39 Contents Page 1 Summary ......................................................................................................................................................... 4 1.1 Test Procedures and Results .................................................................................................................... 4 1.2 Measurement Uncertainty ......................................................................................................................... 5 1.3 Information of the Test Laboratory ............................................................................................................ 5 2 General Information .......................................................................................…

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 ANCHUANGZHILIANElectronicsCo.,Ltd ANCHUANGZHILIANElectronicsCo.,Ltd CompanyAddress:5F,LBuilding,BaicaiScienceandTechnologyPark,Bao'an71stZone,Bao'an District,ShenzhenCity ANCHUANGZHILIANElectronicsCo.,Ltd ANCHUANGZHILIANElectronicsCo.,Ltd Projectbasicinformationdescription： Customer customer model S7PRO materialcode productstandard Versio S7PRO_TX-BLE-V1.1,PCB Antenna n manufacturedat V1.0 e 2025.12.03 Compiled RFaudit Architecture ReviewBoard Approval/Seal Thecustomerconfirmsandsigns： Connectorbuilt-inaerial Antennamaterial workingfrequency(MHz PCB Antenna )2400-2500 一、 Antennatestingequipment 1.1 Aphysicalimageofthedarkroom Insidethedarkroomtestinstrument 1.2testingenvironment Testenvironment Temperature Humidity Airpressure 二、productdrawing assembly position 三、match circuit The original match remains unchanged 四、testdata

Test Model: XTU Mic 1 Radiated Emission AC Conducted Emission RF Conducted Emission