ZVAYY7871EWIRELESS SPEAKER

Tonly Technology Co., Ltd. Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA Date: 2026-03-05 Ref: Attestation Statements Part 2.911(d)(5)(i) Filing FCC ID: ZVAYY7871E Tonly 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. Tonly 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 softwarepursuant toDA-24-886 andKDB 986446D01 Covered Equipment Guidancesection B(2a). Device is inherently compliant based on hardware limitations or software controls. or A Software Bill of Materials (SBOM) is provided to the TCB for review, and The end-user or third parties cannot install additional software on this device. Sincerely, (Applicant signature) Chen Xinyuan (Applicant printed name) Tonly Technology Co., Ltd. Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA Date: 2026-03-05 Ref: Attestation Statements Part 2.911(d)(5)(ii) Filing FCC ID: ZVAYY7871E Tonly Technology Co., Ltd. (“the applicant”) certifies that, as of the date of the filing of theapplication, the applicant is not identified on the Covered List (as a specificallynamed entity or any of its subsidiaries or affiliates) as an entity producing “covered”equipment. Sincerely, (Applicant signature) Chen Xinyuan (Applicant printed name)

Rev 1/26/2023 Tonly Technology Co., Ltd. Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA Date: 2026-03-05 Ref: Attestation Statements Part 2.911(d)(7) Filing FCC ID: ZVAYY7871E Applicant FRN: 0020517298 [Tonly Technology Co., Ltd.] (“the applicant”) certifies that, as of the date of the filing of the application, FCC US Agent, LLC is our designated U.S. agent for service of process for the above referenced FCC ID. [Tonly Technology Co., Ltd.] accepts to maintain an agent 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. FCC US Agent, LLCaccepts, as of the date of the filing of the application, the obligation of the designated U.S. agent for service of process for the above referenced FCC ID. Designated U.S. Agent Information: Company Name: FCC US Agent, LLC FRN: 0033402884 Address: 3722 Illinois Avenue, Saint Charles, IL, 60174, USA Contact Person: Tim Payne Phone: 708-571-3148 Email: [email protected] Sincerely, Tonly Technology Co., Ltd. FCC US Agent, LLC Chen Xinyuan Tim Payne

D:\宋善明\宋善明\Tonly工作文件\Sony\XV3+XVH3\认证资料\FCC ID递交资料\YY7871E FCC ID+ISED LETTERS\YY7871E FCC POA Letter.docx Tonly Technology Co., Ltd. Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Date: 2026-03-05 SUBJECT: FCC Application for ZVAYY7871E To Whom It May Concern: We, the undersigned, hereby authorize Sunny Lu at Audix Technology (Shenzhen) Co., Ltd.on our behalf, to apply to the Federal Communications Commission on our equipment. Any and all acts carried out by Sunny Lu at Audix Technology (Shenzhen) Co., Ltd. on our behalf shall have the same effect as acts of our own. This is to advise that we are in full compliance with the Anti- Drug Abuse Act. We, the applicant, are not subject to a denial of federal benefits pursuant to Section 5301 of the Anti-Drug Act of 1988, 21 USC853a, and no party to the application is subject to a denial of federal benefits pursuant to that section. Regards,

Rev 11/20/07 Tonly Technology Co., Ltd. Federal Communications Commission Authorization and Evaluation Division Confidentiality Request regarding application for certification of FCC ID: ZVAYY7871E. Pursuant to Sections 0.457 and 0.459 of the Commission’s Rules, we hereby request confidential treatment of information accompanying this application as outlined below: Exhibit Type File Name* Block Diagram, Schematics, Operational Description (ie- “1100_schematics.pdf”) The above materials contain trade secrets and proprietary information not customarily released to the public. The public disclosure of these materials may be harmful to the applicant and provide unjustified benefits to its competitors. The applicant understands that pursuant to Section 0.457 of the Rules, disclosure of this application and all accompanying documentation will not be made before the date of the Grant for this application. Pursuant to DA04-1705 June 15, 2004 of the Commission’s public notice, we also request temporary confidential of 180 days after the grant issued treatment accompanying this application as outlined below: Exhibit Type File Name* External Photos, Internal Photos, Test Setup Photos, Manual (ie- “1100_external photos.pdf”) Sincerely, (signature) Chen Xinyuan (printed name)

FCC ID:ZVAYY7871E Inside of the Lid FCC ID Location

Page 1 of 5 Audix Technology Corp. Tel: +886 2 26099301 No. 491, Zhongfu Rd., Linkou Dist., Fax: +886 2 26099303 New Taipei City244,Taiwan File Number: C1M2602137 Report Number: EM-F260116 This test report may be reproduced in full only. The document may only be updated by Audix Technology Corp. personnel. Any changes will be noted in the Document History section of the report. FCC KDB Publication 447498 D04V01Appendix B FCC RF exposure Test Report for Tonly Technology Co., Ltd. Section 37, Zhongkai High-tech Development Zone, Huizhou City, Guangdong Province, P.R. China Product Name : WIRELESS SPEAKER Model Name : YY7871E Brand : SONY FCC ID : ZVAYY7871E Prepared by: : AUDIX Technology Corporation, EMC Department The test report is based on a single evaluation of one sample of the above-mentioned products. It does notimply an assessment of the whole production and does not permit the use of the test lab logo. Page 2 of 5 Audix Technology Corp. Tel: +886 2 26099301 No. 491, Zhongfu Rd., Linkou Dist., Fax: +886 2 26099303 New Taipei City244,Taiwan File Number: C1M2602137 Report Number: EM-F260116 This test report may be reproduced in full only. The document may only be updated by Audix Technology Corp. personnel. Any changes will be noted in the Document History section of the report. TEST REPORT Applicant : Tonly Technology Co., Ltd. Manufacturer : Sony Group Corporation EUT Description (1) Product: WIRELESS SPEAKER (2) Model: YY7871E (3) Brand: SONY (4) Power Supply : AC 120V, 60Hz Applicable Standards: FCC KDB Publication 447498 D04 V01Appendix B Audix Technology Corp. tested the equipment mentioned in accordance with the requirements set forth in the above standards. Test results indicate that the equipment tested is capable of demonstrating compliance with the requirements as documented within this report. Audix Technology Corp. does not assume responsibility for any conclusions and generalizations drawn from the test results with regard to other specimens and samples. Date of Report: 2026. 03. 16 __________________________ Reviewed by: __________________________ (Annie Yu/Section Manager) Approved by: __________________________ (Johnny Hsueh/Deputy Manager) Page 3 of 5 Audix Technology Corp. Tel: +886 2 26099301 No. 491, Zhongfu Rd., Linkou Dist., Fax: +886 2 26099303 New Taipei City244,Taiwan File Number: C1M2602137 Report Number: EM-F260116 This test report may be reproduced in full only. The document may only be updated by Audix Technology Corp. personnel. Any changes will be noted in the Document History section of the report. 1. SUMMARY OF TEST RESULTS Rule Description Results FCC FCC KDB Publication 447498 D04V01Appendix B FCC RF exposure PASS Note: The uncertainties value is not used in determining the result. Page 4 of 5 Audix Technology Corp. Tel: +886 2 26099301 No. 491, Zhongfu Rd., Linkou Dist., Fax: +886 2 26099303 New Taipei City244,Taiwan File Number: C1M2602137 Report Number: EM-F260116 This test report may be reproduced in full only. The document may only be updated by Audix Technology Corp. personnel. Any changes will be noted in the Document History section of the report. 2.TEST RESULTS RADIO FRREQUENCY EXPOSURE COMPLIANCE RESULT : Test Standard : FCC KDB Publication 447498 D04V01Appendix B, applies for single fixed, mobile, and portable RF sources with available maximum time-averaged power or effective radiated power (ERP), whichever is greater, of less than or equal to the threshold P th (mW). This method shall only be used at separation distances from 0.5 cm to 40 cm and at frequencies from 0.3 GHz to 6 GHz (inclusive). P th is given by Formula (B.2). and f is in GHz, d is the separation distance (cm), and ERP20cm is per Formula (B.1) in KDB44749 D04 V01, The example values shown in Table B.2 are for illustration only. According to the actual measurement, max. power of channel, including tune-up tolerance ERP=57.28mW(ERP is from customer Spec) min. test separation distance=96.2mm（antenna location from customer） due to the antenna location Refer to the KDB447498 Table B.2, the SAR test exclusion threshold for 2450MHz at 96.2mm test separation distances is 762mW（calculate FromB.1/2） Page 5 of 5 Audix Technology Corp. Tel: +886 2 26099301 No. 491, Zhongfu Rd., Linkou Dist., Fax: +886 2 26099303 New Taipei City244,Taiwan File Number: C1M2602137 Report Number: EM-F260116 This test report may be reproduced in full only. The document may only be updated by Audix Technology Corp. personnel. Any changes will be noted in the Document History section of the report. The ERP result is 57.28mW≤762mW(P th ), hence the EUT is excluded from SAR evaluation according to FCC KDB Publication 447498 D04:RF Exposure Procedures and Equipment Authorization Policies for Mobile and Portable Devices.

深圳市丰禾原电子科技有限公司 SUNITECENTERPRISECO.,LTD. ANTENNASPECIFICATION Project： BMS003P Antennatype： PCBAantenna Version： V1.0 IssuedDate： 2025.11.12 Testedby： Lite.Mo Checkby： ZhiShun.Huang Manufacturer： SunitecEnterpriseCo.,LTD. Address:BuildingCNo.725,WeiXiangTaiIndustrial zone,FuChengstreet,LongHuadistrict, ShenZhen,GuangDong,China THISDRAWINGSANDSPECIFICATIONSARETHEPROPERTYOFSUNITEC ENTERPRISECO.,LTD.ANDSHALLNOTBEREPRODUCEDORUSEDAS THEBASISFORTHEMANUFACTUREORSALEOFAPPARATUSOR DEVICESWITHOUTPERMISSION PAGE1OF6 Contents 1.RevisionHistory 2.Introduction 3.ElectricalCharacteristics THISDRAWINGSANDSPECIFICATIONSARETHEPROPERTYOFSUNITEC ENTERPRISECO.,LTD.ANDSHALLNOTBEREPRODUCEDORUSEDAS THEBASISFORTHEMANUFACTUREORSALEOFAPPARATUSOR DEVICESWITHOUTPERMISSION PAGE2OF6 1.RevisionHistory Rev.NoIssuedDateDescriptionSummary V1.02025.11.12initialrelease 2.Introduction 2.1IntroductionofProduct ThisproductisaBluetoothantennaprintedonaPCB 2.2SpecificationandDimension 3.ElectricalCharacteristics 3.1Testequipment: EquipmentManufacturerModelNo LastCal.DueDate VECTOR NETWORK ANALYZER AgilentE5071C2025.10.102026.10.09 Antenna Measurement System ETS-Lindgren AMS-80502025.10.102026.10.09 ETS-Lindgren EMCenter ModularRF Platform 2025.10.102026.10.09 THISDRAWINGSANDSPECIFICATIONSARETHEPROPERTYOFSUNITEC ENTERPRISECO.,LTD.ANDSHALLNOTBEREPRODUCEDORUSEDAS THEBASISFORTHEMANUFACTUREORSALEOFAPPARATUSOR DEVICESWITHOUTPERMISSION PAGE3OF6 3.2AntennaS11parameters 3.3AntennaTestSettings: THISDRAWINGSANDSPECIFICATIONSARETHEPROPERTYOFSUNITEC ENTERPRISECO.,LTD.ANDSHALLNOTBEREPRODUCEDORUSEDAS THEBASISFORTHEMANUFACTUREORSALEOFAPPARATUSOR DEVICESWITHOUTPERMISSION PAGE4OF6 3.43DRadiationPattern: 2400MHz 2440MHz 2480MHz THISDRAWINGSANDSPECIFICATIONSARETHEPROPERTYOFSUNITEC ENTERPRISECO.,LTD.ANDSHALLNOTBEREPRODUCEDORUSEDAS THEBASISFORTHEMANUFACTUREORSALEOFAPPARATUSOR DEVICESWITHOUTPERMISSION PAGE5OF6 3.52DRadiationPattern: 2400MHz 2440MHz 2480MHz THISDRAWINGSANDSPECIFICATIONSARETHEPROPERTYOFSUNITEC ENTERPRISECO.,LTD.ANDSHALLNOTBEREPRODUCEDORUSEDAS THEBASISFORTHEMANUFACTUREORSALEOFAPPARATUSOR DEVICESWITHOUTPERMISSION PAGE6OF6 3.6ElectricalCharacteristics: AntennaModelNamePCBAantenna WorkingFrequencyRange2400~2480MHz Impedance50Ω MaxEfficiency(%)75.38%@2460MHz MaxpeakGain(dBi)2.73dBi@2460MHz Frequency(MHz)Efficiency(%) PeakGain(dBi) 240071.572.58 241072.392.62 242072.292.60 243072.502.59 244073.502.62 245074.582.68 246075.382.73 247074.632.67 248075.022.68

APPENDIX A-Page 1 of29 Audix Technology Corp. Tel: +886 2 26099301 No. 491, Zhongfu Rd., Linkou Dist., Fax: +886 2 26099303 New Taipei City244, Taiwan File Number: C1M2602137 Report Number: EM-F260114 This test report may be reproduced in full only. The document may only be updated by Audix Technology Corp. personnel. Any changes will be noted in the Document History section of the report. TABLE OF CONTENTS A.1 CONDUCTED EMISSION ...................................................................................................... 2 A.2 RADIATED EMISSION .......................................................................................................... 4 A.2.1 Emissions within Restricted Frequency Bands ............................................................................. 4 A.2.2 Emissions outside the frequency band ........................................................................................ 16 A.2.3 Emissions in Non-restricted Frequency Bands ........................................................................... 19 A.3 DTS/OCCUPIED BANDWIDTH .......................................................................................... 20 A.3.1 DTS/Occupied Bandwidth Result ............................................................................................... 20 A.3.2 Measurement Plots ..................................................................................................................... 21 A.4 MAXIMUM PEAK OUTPUT POWER ............................................................................... 23 A.4.1 Maximum Peak Output Power .................................................................................................... 23 A.4.2 Average Output Power (Reporting only) .................................................................................... 23 A.5 EMISSION LIMITATIONS .................................................................................................. 24 A.6 POWER SPECTRAL DENSITY .......................................................................................... 28 A.6.1 Power Spectral Density Result ................................................................................................... 28 A.6.2 Measurement Plots ..................................................................................................................... 29 APPENDIX A-Page 2 of29 Audix Technology Corp. Tel: +886 2 26099301 No. 491, Zhongfu Rd., Linkou Dist., Fax: +886 2 26099303 New Taipei City244, Taiwan File Number: C1M2602137 Report Number: EM-F260114 This test report may be reproduced in full only. The document may only be updated by Audix Technology Corp. personnel. Any changes will be noted in the Document History section of the report. A.1 CONDUCTED EMISSION Test Date 2026/03/09 Temp./Hum. 24°C/50% Test Voltage AC 120V, 60Hz Tested By Bruce Tseng APPENDIX A-Page 3 of29 Audix Technology Corp. Tel: +886 2 26099301 No. 491, Zhongfu Rd., Linkou Dist., Fax: +886 2 26099303 New Taipei City244, Taiwan File Number: C1M2602137 Report Number: EM-F260114 This test report may be reproduced in full only. The document may only be updated by Audix Technology Corp. personnel. Any changes will be noted in the Document History section of the report. Test Date 2026/03/09 Temp./Hum. 24°C/50% Test Voltage AC 120V, 60Hz Tested By Bruce Tseng APPENDIX A-Page 4 of29 Audix Technology Corp. Tel: +886 2 26099301 No. 491, Zhongfu Rd., Linkou Dist., Fax: +886 2 26099303 New Taipei City244, Taiwan File Number: C1M2602137 Report Number: EM-F260114 This test report may be reproduced in full only. The document may only be updated by Audix Technology Corp. personnel. Any changes will be noted in the Document History section of the report. A.2 RADIATED EMISSION Test Date 2026/03/03 Temp./Hum. 21°C/62% Test Voltage AC 120V, 60Hz Tested By Sean Wang A.2.1 Emissions within Restricted Frequency Bands A.2.1.1 Frequency 9kHz~30MHz The emissions (9kHz~30MHz) not reported for there is no emission be found. APPENDIX A-Page 5 of29 Audix Technology Corp. Tel: +886 2 26099301 No. 491, Zhongfu Rd., Linkou Dist., Fax: +886 2 26099303 New Taipei City244, Taiwan File Number: C1M2602137 Report Number: EM-F260114 This test report may be reproduced in full only. The document may only be updated by Audix Technology Corp. personnel. Any changes will be noted in the Document History section of the report. A.2.1.2 Frequency Below 1GHz.  Normal Mode Mode Normal Mode Frequency --- Antenna at Horizontal Polarization Emission Frequency Antenna Factor Cable Loss Preamp Gain Reading level Emission Level Limits Margin Detector (MHz) (dB/m) (dB) (dB) (dBV) (dBV/m) (dBV/m) (dB) 39.000 19.78 1.57 26.46 37.60 32.49 40.00 7.51 Peak 132.000 18.12 3.00 26.08 39.04 34.08 43.50 9.42 Peak 312.000 19.94 4.87 25.71 39.56 38.66 46.00 7.34 Peak 665.000 24.98 7.47 27.40 28.30 33.35 46.00 12.65 Peak 835.000 25.80 8.39 27.13 29.38 36.45 46.00 9.55 Peak 980.000 27.26 9.27 26.76 26.56 36.33 54.00 17.67 Peak Antenna at Vertical Polarization Emission Frequency Antenna Factor Cable Loss Preamp Gain Reading level Emission Level Limits Margin Detector (MHz) (dB/m) (dB) (dB) (dBV) (dBV/m) (dBV/m) (dB) 36.000 21.26 1.50 0.00 11.50 34.26 40.00 5.74 QP 43.000 17.88 1.65 0.00 8.50 28.03 40.00 11.97 QP 144.000 17.48 3.12 0.00 6.10 26.70 43.50 16.80 QP 252.000 18.80 4.20 25.68 36.91 34.23 46.00 11.77 Peak 395.000 21.99 6.00 26.37 33.58 35.19 46.00 10.81 Peak 975.000 27.24 9.25 26.77 27.49 37.20 54.00 16.80 Peak APPENDIX A-Page 6 of29 Audix Technology Corp. Tel: +886 2 26099301 No. 491, Zhongfu Rd., Linkou Dist., Fax: +886 2 26099303 New Taipei City244, Taiwan File Number: C1M2602137 Report Number: EM-F260114 This test report may be reproduced in full only. The document may only be updated by Audix Technology Corp. personnel. Any changes will be noted in the Document History section of the report.  BLE Mode Mode BLE (1Mbps) Frequency TX 2480MHz Antenna at Horizontal Polarization Emission F…

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Page 1 of 29 Audix Technology Corp. Tel: +886 2 26099301 No. 491, Zhongfu Rd., Linkou Dist., Fax: +886 2 26099303 New Taipei City244,Taiwan File Number: C1M2602137 Report Number: EM-F260114 This test report may be reproduced in full only. The document may only be updated by Audix Technology Corp. personnel. Any changes will be noted in the Document History section of the report. FCC 15.247 & RSS-247 2.4GHz Test Report for Tonly Technology Co., Ltd. Section 37, Zhongkai High-tech Development Zone, Huizhou City, Guangdong Province, P.R. China Product Name : WIRELESS SPEAKER Model Name : YY7871E Brand : SONY FCC ID : ZVAYY7871E IC : 9976A-YY7871E Prepared by: : AUDIX Technology Corporation, EMC Department The test report is based on a single evaluation of one sample of the above-mentioned products. It does notimply an assessment of the whole production and does not permit the use of the test lab logo. Page 2 of 29 Audix Technology Corp. Tel: +886 2 26099301 No. 491, Zhongfu Rd., Linkou Dist., Fax: +886 2 26099303 New Taipei City244,Taiwan File Number: C1M2602137 Report Number: EM-F260114 This test report may be reproduced in full only. The document may only be updated by Audix Technology Corp. personnel. Any changes will be noted in the Document History section of the report. TABLE OF CONTENTS Description Page TEST REPORT ................................................................................................................................... 4 1. REVISION RECORD OF TEST REPORT ............................................................................ 5 2. SUMMARY OF TEST RESULTS ........................................................................................... 6 3. GENERAL INFORMATION ................................................................................................... 7 3.1. Description of Application .............................................................................................................. 7 3.2. Description of EUT ......................................................................................................................... 8 3.3. Reference Test Guidance ................................................................................................................. 8 3.4. Antenna Information ....................................................................................................................... 8 3.5. EUT Specifications Assessed in Current Report ............................................................................. 9 3.6. Description of Key Components ................................................................................................... 10 3.7. Test Configuration ......................................................................................................................... 10 3.8. Output Power Setting .................................................................................................................... 12 3.9. Tested Supporting System List ...................................................................................................... 12 3.10. Setup Configuration ....................................................................................................................... 13 3.11. Operating Condition of EUT ......................................................................................................... 13 3.12. Description of Test Facility ........................................................................................................... 14 3.13. Measurement Uncertainty ............................................................................................................. 15 4. MEASUREMENT EQUIPMENTLIST ................................................................................. 16 4.1. Conducted Emission Measurement ............................................................................................... 16 4.2. Radiated Emission Measurement .................................................................................................. 16 4.3. RF Conducted Measurement ......................................................................................................... 16 5. CONDUCTED EMISSION ..................................................................................................... 17 5.1. Block Diagram of Test Setup ........................................................................................................ 17 5.2. Conducted Emission Limit ............................................................................................................ 17 5.3. Test Procedure ............................................................................................................................... 18 5.4. Test Results ................................................................................................................................... 18 6. RADIATED EMISSION ......................................................................................................... 19 6.1. Block Diagram of Test Setup ........................................................................................................ 19 6.2. Radiated Emission Limits .............................................................................................................. 20 6.3. Test Procedure ............................................................................................................................... 21 6.4. Measurement Result Explanation .................................................................................................. 22 6.5. Test Results ................................................................................................................................... 22 7. DTS/OCCUPIED BANDWIDTH ........................................................................................... 23 7.1. Block Diagram of Test Setup ..............................................…

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