AK8YY2985Wireless Noise Canceling Stereo Headset

Sony Global Manufacturing & Operations Corporation Date: October 1, 2025 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 RE: CFR 47 §2.911 (d)(5) Attestation FCC ID: AK8YY2985 Sony Group Corporation (“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. Sony Group Corporation (“the applicant”) certifies that, the device does not have cybersecurity and / or anti-virus software produced or provided by Kaspersky Lab, Inc. or any of its successors and assignees, identified on the Covered List installed on the device, nor will it be installed by the applicant anytime after certification. Sony Group Corporation (“the applicant”) certifies that, as of the date of the filing of the application, the applicant is not identified on the Covered List as an entity producing “covered” equipment and is not an affiliate or subsidiary of an entity identified on the Covered List. Sincerely yours, Hideo Nomura Sony Global Manufacturing & Operations Corporation

Sony Group Corporation CFR 47 §2.911 (d)(7) Agent Designation Attestation Date: February 6, 2024 Grantee Code: AK8 Grantee FRN: 0003739166 To: Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 USA FCC US Agent: Sony Electronics Inc. FRN: 0034881516 Mrs. Sanae Liu 16535 Via Esprillo San Diego California, 92127 [email protected] This letter is to confirm that we have accepted the responsibility to act as US Agent on behalf of Sony Group Corporation ("the applicant") for the above referenced Grantee Code. We are aware of the requirements and responsibilities of the applicant's agent for service of process as outlined in the FCC section 2.911(d)(7) and Report and Order FCC 22-84 paragraph 63. Sincerely yours, Sanae Liu Sr. Regulatory Affairs Analyst Sony Electronics Inc.

Sony Group Corporation CFR 47 §2.911 (d)(7) Agent Designation Attestation Date: October 29, 2024 Grantee Code: AK8 Grantee FRN: 0003739166 To: Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 USA Sony Group Corporation (“the applicant”) as required by section 2.911(d)(7), designates the following agent, located in the United States, for purposes of acting as the applicant’s agent for service of process. The applicant acknowledges that they will 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. The applicant further acknowledges their responsibility to inform the FCC whenever the agent information changes. U. S. Agent Information: Mrs. Sanae Liu FRN: 0034881516 Sony Electronics Inc. 16535 Via Esprillo San Diego California, 92127 [email protected] Sincerely yours, Kazuyuki Hori Chief EMC/RF Compliance Specialist Sony Group Corporation

Sony Global Manufacturing & OperaƟons CorporaƟon Authorization Letter October 1, 2025 UL Verification Services Inc. 47173 Benicia Street, Fremont, CA 94538 FCC ID: AK8YY2985 Applicant: Sony Group Corporation To whom it may concern: We, the undersigned, hereby authorize Akiko Nishimura of Consumer, Medical & Information Technologies Division, UL Japan, Inc. to act on our behalf in all manners relating to application for equipment authorization, including signing of all documents relating to these matters. Any and all acts carried out by UL Japan, Inc. on our behalf shall have the same effect as acts of our own. We, the undersigned, hereby certify that we are not subject to a denial of federal benefits, that includes FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C. 862. This authorization is valid until further written notice from the applicant. The application for the subject equipment has not been submitted to another TCB for certification. Sincerely, ______________________________ Hideo Nomura Sony Global Manufacturing & Operations Corporation

Sony Global Manufacturing & OperaƟons CorporaƟon Request for Long-Term Confidentiality October 1, 2025 UL Verification Services Inc. 47173 Benicia Street, Fremont, CA 94538 FCC ID: AK8YY2985 Applicant: Sony Group Corporation To whom it may concern: Please be advised that the following information is to be held confidential on behalf of us, referring to the FCC rules 0.457 and 0.459: Block Diagram Operational Description Schematics The application contains technical information which we deem to be trade secrets and proprietary. If made public, the information might be used to the disadvantage of the applicant in the marketplace. Thank you for your attention to this matter. Sincerely, ______________________________ Hideo Nomura Sony Global Manufacturing & Operations Corporation

Sony Global Manufacturing & OperaƟons CorporaƟon Request for Short-Term Confidentiality October 1, 2025 UL Verification Services Inc. 47173 Benicia Street, Fremont, CA 94538 FCC ID: AK8YY2985 Applicant: Sony Group Corporation To whom it may concern: Please be advised that the following information is to be held in confidence for 180 days from the date of the Grant of Equipment Authorization based on the FCC rules 0.457 and 0.459: External Photos Internal Photos Test Setup Photos User Manual The application contains technical information, which we deem to be trade secrets and proprietary. If made public, the information might be used to the disadvantage of the applicant in the marketplace. Thank you for your attention to this matter. Sincerely, ______________________________ Hideo Nomura Sony Global Manufacturing & Operations Corporation

Sony Group Corporation Special Power of Attorney I, Kazuyuki Hori of Sony Group Corporation, hereby appoint Hideo Nomura of Sony Global Manufacturing & Operations Corporation to represent me to act on my behalf to do any and all of the following. Sign on my behalf the agency, anti-drug and confidentiality cover letters and apply to FCC for the products. The rights, powers and authority in fact to exercise any and all of the rights and powers herein granted shall commence and be in full force from April 1, 2021 and continue to be effective unless specifically terminated by either party. Dated April 1, 2021 Kazuyuki Hori Company: Sony Group Corporation Country: Japan

FCC ID Location Note. Surface on headsets is round shape and there are limited space. If approval mark/number is displayed headsets, the letters must be very small, looks distorted and it’s not legible. Therefore, we would like to omit approval mark/number on headsets and display as follows; display on User Manual and Package. (Top of package) MODEL: YY2985 FCC ID: AK8YY2985 Letterings height : 1.1 mm

Project No: JB-Z1458-A Model No.: YY2985 FCC ID: AK8YY2985 Issued: October 1, 2025 Page 1 of 80 Sony Global Manufacturing & Operations Corporation EMC/RF Test Laboratory, Main Lab. 8-4 Shiomi Kisarazu-shi Chiba-ken, 292-0834, Japan PHONE +81 438 37 2750 SAR TEST REPORT Project No. : JB-Z1458-A Client : Sony Corporation Address : 1-7-1 Konan Minato-ku Tokyo, 108-0075 Japan Type of Equipment : Wireless Noise Canceling Stereo Headset Model No. : YY2985 FCC ID : AK8YY2985 Regulation Applied : FCC 47 CFR 2.1093 SAR Limits : Exposure Characteristics SAR averaged over any 1 g of tissue General Public Exposure 1.6 W/kg The Highest Reported SAR : RF Exposure Conditions Bluetooth Note(s) Head (Left ear) 0.581 W/kg Headset (L) Head (Right ear) 0.595 W/kg Headset (R) Test Result : Complied Sample Receipt : July 16, 2025 Te s t i n g : July 22, 2025 - July 24, 2025 (for conducted power measurements) August 26, 2025 - September 04, 2025 (for SAR measurements) Reported : October 1, 2025 Reported by : Approved Signatory : Koji Ohyama Koji Hayama Technical Manager Technical Manager EMC/ RF Test Laboratory Main Lab. EMC/ RF Test Laboratory Main Lab. Design Technology Division Design Technology Division Sony Global Manufacturing & Operations Corporation Sony Global Manufacturing & Operations Corporation Notice * These test results relate only to the items (combination equipment, test configuration, operation condition etc.) tested. * This report shall not be reproduced except in full, without written approval of the laboratory. * This report must not be used by the client to claim product endorsement by A2LA or any agency of the U.S. Government. * Hereby certify that no party is subject to a denial of federal benefits pursuant to section 5301 of the Anti-Drug Abuse Act. * All test results are traceable to the national and / or international standards. * The testing in which “Non-accreditation” is displayed is outside the accreditation scopes in Sony Global Manufacturing & Operations Corporation EMC/ RF Test Laboratory. * This report replaces and supersedes all previous versions. Refer to Revision History on the following page. TESTING CERT #3203.01 Format No.:NV1-1-01 Version 5.0 Project No: JB-Z1458-A Model No.: YY2985 FCC ID: AK8YY2985 Issued: October 1, 2025 Page 2 of 80 Sony Global Manufacturing & Operations Corporation EMC/RF Test Laboratory, Main Lab. 8-4 Shiomi Kisarazu-shi Chiba-ken, 292-0834, Japan PHONE +81 438 37 2750 REVISION HISTORY Project No. Revision Page Description Issued date JB-Z1458 Original - - September 10, 2025 JB-Z1458-A 1 1 Corrected the Te s ting Date. October 1, 2025 DISCLAIMER This report includes the information provided by the customer as below; - Cover page : Client and product related information - Clause 1.1 : Description of Device Under Test (DUT) - Clause 1.2 : Antenna Placement - Clause 1.3 : Simultaneous Transmission Conditions - Clause 1.4 : Nominal and Maximum Possible Power (Maximum Tune-up Tolerance Limit) * The laboratory is not responsible for results affected by the above information. Note(s) -indicates that the listed condition, standard or equipment is applicable for this report. -indicates that the listed condition, standard or equipment is not applicable for this report. Project No: JB-Z1458-A Model No.: YY2985 FCC ID: AK8YY2985 Issued: October 1, 2025 Page 3 of 80 Sony Global Manufacturing & Operations Corporation EMC/RF Test Laboratory, Main Lab. 8-4 Shiomi Kisarazu-shi Chiba-ken, 292-0834, Japan PHONE +81 438 37 2750 TABLE OF CONTENTS 1. General Information ................................................................................................................................. 4 1.1. Description of Device Under Test (DUT) ............................................................................................. 4 1.2. Antenna Placement ................................................................................................................................ 4 1.3. Simultaneous Transmission Conditions .............................................................................................. 5 1.4. Nominal and Maximum Possible Power (Maximum Tune-up Tolerance Limit) .......................... 5 1.5. RF Exposure Conditions ........................................................................................................................ 5 1.6. RF Exposure Limits ................................................................................................................................ 6 1.7. SAR Test Exclusion ................................................................................................................................ 7 1.8. Test Specification, Methods and Procedures ....................................................................................... 8 1.9. Test Facilities and Accreditation .......................................................................................................... 9 2. Test Set-up .............................................................................................................................................. 10 2.1. Test Equipment and Measurement Software Lists ......................................................................... 10 2.2. Measurement System Description ..................................................................................................... 11 2.3. Measurement System Main Components ......................................................................................... 12 2.4. Tissue Simulating Liquids ................................................................................................................... 15 2.5. SAR Measurement ............................................................................................................................... 16 2.6. Measurement Uncertainty .................................................................................................................. 17 2.7. Dielectric Pa…

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Project No: JB-Z1458-A Model No.: YY2985 FCC ID: AK8YY2985 Issued: October 1, 2025 Page 37 of 80 Sony Global Manufacturing & Operations Corporation EMC/RF Test Laboratory, Main Lab. 8-4 Shiomi Kisarazu-shi Chiba-ken, 292-0834, Japan PHONE +81 438 37 2750 Appendix C. Calibration Certificate C.1. E-Field Probe EX3DV4 (Serial No. 7452 / Control No. WA0052) Please see the following pages. Project No: JB-Z1458-A Model No.: YY2985 FCC ID: AK8YY2985 Issued: October 1, 2025 Page 38 of 80 Sony Global Manufacturing & Operations Corporation EMC/RF Test Laboratory, Main Lab. 8-4 Shiomi Kisarazu-shi Chiba-ken, 292-0834, Japan PHONE +81 438 37 2750 Project No: JB-Z1458-A Model No.: YY2985 FCC ID: AK8YY2985 Issued: October 1, 2025 Page 39 of 80 Sony Global Manufacturing & Operations Corporation EMC/RF Test Laboratory, Main Lab. 8-4 Shiomi Kisarazu-shi Chiba-ken, 292-0834, Japan PHONE +81 438 37 2750 Project No: JB-Z1458-A Model No.: YY2985 FCC ID: AK8YY2985 Issued: October 1, 2025 Page 40 of 80 Sony Global Manufacturing & Operations Corporation EMC/RF Test Laboratory, Main Lab. 8-4 Shiomi Kisarazu-shi Chiba-ken, 292-0834, Japan PHONE +81 438 37 2750 Project No: JB-Z1458-A Model No.: YY2985 FCC ID: AK8YY2985 Issued: October 1, 2025 Page 41 of 80 Sony Global Manufacturing & Operations Corporation EMC/RF Test Laboratory, Main Lab. 8-4 Shiomi Kisarazu-shi Chiba-ken, 292-0834, Japan PHONE +81 438 37 2750 Project No: JB-Z1458-A Model No.: YY2985 FCC ID: AK8YY2985 Issued: October 1, 2025 Page 42 of 80 Sony Global Manufacturing & Operations Corporation EMC/RF Test Laboratory, Main Lab. 8-4 Shiomi Kisarazu-shi Chiba-ken, 292-0834, Japan PHONE +81 438 37 2750 Project No: JB-Z1458-A Model No.: YY2985 FCC ID: AK8YY2985 Issued: October 1, 2025 Page 43 of 80 Sony Global Manufacturing & Operations Corporation EMC/RF Test Laboratory, Main Lab. 8-4 Shiomi Kisarazu-shi Chiba-ken, 292-0834, Japan PHONE +81 438 37 2750 Project No: JB-Z1458-A Model No.: YY2985 FCC ID: AK8YY2985 Issued: October 1, 2025 Page 44 of 80 Sony Global Manufacturing & Operations Corporation EMC/RF Test Laboratory, Main Lab. 8-4 Shiomi Kisarazu-shi Chiba-ken, 292-0834, Japan PHONE +81 438 37 2750 Project No: JB-Z1458-A Model No.: YY2985 FCC ID: AK8YY2985 Issued: October 1, 2025 Page 45 of 80 Sony Global Manufacturing & Operations Corporation EMC/RF Test Laboratory, Main Lab. 8-4 Shiomi Kisarazu-shi Chiba-ken, 292-0834, Japan PHONE +81 438 37 2750 Project No: JB-Z1458-A Model No.: YY2985 FCC ID: AK8YY2985 Issued: October 1, 2025 Page 46 of 80 Sony Global Manufacturing & Operations Corporation EMC/RF Test Laboratory, Main Lab. 8-4 Shiomi Kisarazu-shi Chiba-ken, 292-0834, Japan PHONE +81 438 37 2750 Project No: JB-Z1458-A Model No.: YY2985 FCC ID: AK8YY2985 Issued: October 1, 2025 Page 47 of 80 Sony Global Manufacturing & Operations Corporation EMC/RF Test Laboratory, Main Lab. 8-4 Shiomi Kisarazu-shi Chiba-ken, 292-0834, Japan PHONE +81 438 37 2750 Project No: JB-Z1458-A Model No.: YY2985 FCC ID: AK8YY2985 Issued: October 1, 2025 Page 48 of 80 Sony Global Manufacturing & Operations Corporation EMC/RF Test Laboratory, Main Lab. 8-4 Shiomi Kisarazu-shi Chiba-ken, 292-0834, Japan PHONE +81 438 37 2750 Project No: JB-Z1458-A Model No.: YY2985 FCC ID: AK8YY2985 Issued: October 1, 2025 Page 49 of 80 Sony Global Manufacturing & Operations Corporation EMC/RF Test Laboratory, Main Lab. 8-4 Shiomi Kisarazu-shi Chiba-ken, 292-0834, Japan PHONE +81 438 37 2750 Project No: JB-Z1458-A Model No.: YY2985 FCC ID: AK8YY2985 Issued: October 1, 2025 Page 50 of 80 Sony Global Manufacturing & Operations Corporation EMC/RF Test Laboratory, Main Lab. 8-4 Shiomi Kisarazu-shi Chiba-ken, 292-0834, Japan PHONE +81 438 37 2750 Project No: JB-Z1458-A Model No.: YY2985 FCC ID: AK8YY2985 Issued: October 1, 2025 Page 51 of 80 Sony Global Manufacturing & Operations Corporation EMC/RF Test Laboratory, Main Lab. 8-4 Shiomi Kisarazu-shi Chiba-ken, 292-0834, Japan PHONE +81 438 37 2750 Project No: JB-Z1458-A Model No.: YY2985 FCC ID: AK8YY2985 Issued: October 1, 2025 Page 52 of 80 Sony Global Manufacturing & Operations Corporation EMC/RF Test Laboratory, Main Lab. 8-4 Shiomi Kisarazu-shi Chiba-ken, 292-0834, Japan PHONE +81 438 37 2750 Project No: JB-Z1458-A Model No.: YY2985 FCC ID: AK8YY2985 Issued: October 1, 2025 Page 53 of 80 Sony Global Manufacturing & Operations Corporation EMC/RF Test Laboratory, Main Lab. 8-4 Shiomi Kisarazu-shi Chiba-ken, 292-0834, Japan PHONE +81 438 37 2750 Project No: JB-Z1458-A Model No.: YY2985 FCC ID: AK8YY2985 Issued: October 1, 2025 Page 54 of 80 Sony Global Manufacturing & Operations Corporation EMC/RF Test Laboratory, Main Lab. 8-4 Shiomi Kisarazu-shi Chiba-ken, 292-0834, Japan PHONE +81 438 37 2750 Project No: JB-Z1458-A Model No.: YY2985 FCC ID: AK8YY2985 Issued: October 1, 2025 Page 55 of 80 Sony Global Manufacturing & Operations Corporation EMC/RF Test Laboratory, Main Lab. 8-4 Shiomi Kisarazu-shi Chiba-ken, 292-0834, Japan PHONE +81 438 37 2750 Project No: JB-Z1458-A Model No.: YY2985 FCC ID: AK8YY2985 Issued: October 1, 2025 Page 56 of 80 Sony Global Manufacturing & Operations Corporation EMC/RF Test Laboratory, Main Lab. 8-4 Shiomi Kisarazu-shi Chiba-ken, 292-0834, Japan PHONE +81 438 37 2750 Project No: JB-Z1458-A Model No.: YY2985 FCC ID: AK8YY2985 Issued: October 1, 2025 Page 57 of 80 Sony Global Manufacturing & Operations Corporation EMC/RF Test Laboratory, Main Lab. 8-4 Shiomi Kisarazu-shi Chiba-ken, 292-0834, Japan PHONE +81 438 37 2750 Project No: JB-Z1458-A Model No.: YY2985 FCC ID: AK8YY2985 Issued: October 1, 2025 Page 58 of 80 Sony Global Manufacturing & Operations Corporation EMC/RF Test Laboratory, Main Lab. 8-4 Shiomi Kisarazu-shi Chiba-ken, 292-0834, Japan PHONE +81 438 37 2750 Project No: JB-Z1458-A Model No.: YY2985 FCC ID: AK8YY2985 Issued: October 1, 2025 Page 59 of 80 Sony Global Manufacturing & Operations Corporation EMC/RF Test Laboratory, Main Lab. 8-4 Shiomi Kisarazu-shi Chiba-ken, 292-0834, Japan PHONE +81 438 37 2750 Pr…

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Project No: JB-Z1458-A Model No.: YY2985 FCC ID: AK8YY2985 Issued: October 1, 2025 Page 61 of 80 Sony Global Manufacturing & Operations Corporation EMC/RF Test Laboratory, Main Lab. 8-4 Shiomi Kisarazu-shi Chiba-ken, 292-0834, Japan PHONE +81 438 37 2750 C.2. System Validation Dipole D2450V2 (Serial No. 936 / Control No. WA0026) Please see the following pages. Project No: JB-Z1458-A Model No.: YY2985 FCC ID: AK8YY2985 Issued: October 1, 2025 Page 62 of 80 Sony Global Manufacturing & Operations Corporation EMC/RF Test Laboratory, Main Lab. 8-4 Shiomi Kisarazu-shi Chiba-ken, 292-0834, Japan PHONE +81 438 37 2750 Project No: JB-Z1458-A Model No.: YY2985 FCC ID: AK8YY2985 Issued: October 1, 2025 Page 63 of 80 Sony Global Manufacturing & Operations Corporation EMC/RF Test Laboratory, Main Lab. 8-4 Shiomi Kisarazu-shi Chiba-ken, 292-0834, Japan PHONE +81 438 37 2750 Project No: JB-Z1458-A Model No.: YY2985 FCC ID: AK8YY2985 Issued: October 1, 2025 Page 64 of 80 Sony Global Manufacturing & Operations Corporation EMC/RF Test Laboratory, Main Lab. 8-4 Shiomi Kisarazu-shi Chiba-ken, 292-0834, Japan PHONE +81 438 37 2750 Project No: JB-Z1458-A Model No.: YY2985 FCC ID: AK8YY2985 Issued: October 1, 2025 Page 65 of 80 Sony Global Manufacturing & Operations Corporation EMC/RF Test Laboratory, Main Lab. 8-4 Shiomi Kisarazu-shi Chiba-ken, 292-0834, Japan PHONE +81 438 37 2750 Project No: JB-Z1458-A Model No.: YY2985 FCC ID: AK8YY2985 Issued: October 1, 2025 Page 66 of 80 Sony Global Manufacturing & Operations Corporation EMC/RF Test Laboratory, Main Lab. 8-4 Shiomi Kisarazu-shi Chiba-ken, 292-0834, Japan PHONE +81 438 37 2750 Project No: JB-Z1458-A Model No.: YY2985 FCC ID: AK8YY2985 Issued: October 1, 2025 Page 67 of 80 Sony Global Manufacturing & Operations Corporation EMC/RF Test Laboratory, Main Lab. 8-4 Shiomi Kisarazu-shi Chiba-ken, 292-0834, Japan PHONE +81 438 37 2750 Project No: JB-Z1458-A Model No.: YY2985 FCC ID: AK8YY2985 Issued: October 1, 2025 Page 68 of 80 Sony Global Manufacturing & Operations Corporation EMC/RF Test Laboratory, Main Lab. 8-4 Shiomi Kisarazu-shi Chiba-ken, 292-0834, Japan PHONE +81 438 37 2750 Project No: JB-Z1458-A Model No.: YY2985 FCC ID: AK8YY2985 Issued: October 1, 2025 Page 69 of 80 Sony Global Manufacturing & Operations Corporation EMC/RF Test Laboratory, Main Lab. 8-4 Shiomi Kisarazu-shi Chiba-ken, 292-0834, Japan PHONE +81 438 37 2750 Project No: JB-Z1458-A Model No.: YY2985 FCC ID: AK8YY2985 Issued: October 1, 2025 Page 70 of 80 Sony Global Manufacturing & Operations Corporation EMC/RF Test Laboratory, Main Lab. 8-4 Shiomi Kisarazu-shi Chiba-ken, 292-0834, Japan PHONE +81 438 37 2750

FCC Part 15 Antenna Gain Test Report FCC ID:AK8YY2985 Type of Equipment:Radio Equipment Model No.:YY2985 Similar Model(s) to be covered by this report: N/A Test Facility:Sony Corporation Sony city MinatoMirai 5-1-1, Minatomirai, Nishi-ku, Yokohama, Kanagawa, 220- 8750 Japan Date of Testing:July 18, 2025 Date of Issue:July 18, 2025 Reported by:Approved Signatory: Yoshihisa Kadosawa (Technical Engineer) Yuichiro Suzuki (Technical Manager) 2 1. Measurement Procedure The antenna gain is measured with StarLab50GHz multi-probe measurement system. (References: MVG, StarLab50GHz multi-probe measurement system datasheet) System Overview 1 Wedge Absorbers 2 Cutting-edge Probes 3 High Accuracy Reference Antennas 4 High Precision Unlimited Sampling 5 Sturdy, Transparent Positioner 6 Accurate Stabilizers 3 2. Test Equipment and Measurement Software UsedControl No. Equipment DescriptionModel No.Serial No.ManufacturerCal. IntervalLast Cal.Remark Y-Multi-Probe Measurement System StarLab1103042-0001MVG12 months2024.12.14 YM1062ENA Network AnalyzerE5071CMY46629353Keysight Technologies12 months2025.04.08 •The calibration is valid until the end of the expiration month. UsedControl No. Software DescriptionModel No.VersionManufacturerRemark Y-Automated Antenna and OTA Measurement Software Suite MVG WaveStudio 24.2.9MVG Y-Near-Field to Far-Field Transformation Software MV-Sphere3.5.7MVG Test Equipment Measurement Software 4 3. Antenna Under Test Antenna 1 Antenna Model Name:ANTENNA L Antenna Type:Monopole Manufacturer:GoertekInc. Input Impedance:50 ohm Antenna 2 Antenna Model Name:ANTENNA R Antenna Type:Monopole Manufacturer:GoertekInc. Input Impedance:50 ohm 5 4. Antenna Gains Antenna 1 Date of Testing:July 18, 2025 Tested Personnel:Yoshihisa Kadosawa Temperature:25.4 deg.C Relative Humidity:44.8 % AntennaFrequency (MHz) Peak Gain (dBi) Remark Antenna 12400 -3.65 2440 -3.18 * 2.4 GHz peak 2480 -4.21 Antenna 2 Date of Testing:July 18, 2025 Tested Personnel:Yoshihisa Kadosawa Temperature:25.4 deg.C Relative Humidity:44.8 % AntennaFrequency (MHz) Peak Gain (dBi) Remark Antenna 22400 -3.38 2440 -2.54 * 2.4 GHz peak 2480 -3.21 6 5. Antenna Directivity Plots Antenna 1 (1/2) FrequencyXZ-cutXY-cutYZ-cut 2400 MHz 2440 MHz 7 5. Antenna Directivity Plots Antenna 1 (2/2) FrequencyXZ-cutXY-cutYZ-cut 2480 MHz 8 Antenna 2 (1/2) FrequencyXZ-cutXY-cutYZ-cut 2400 MHz 2440 MHz 5. Antenna Directivity Plots 9 5. Antenna Directivity Plots Antenna 2 (2/2) FrequencyXZ-cutXY-cutYZ-cut 2480 MHz 10 Y X Z Elevation 0° +90° 180° Azimuth 0° 90° 270° + 180° Appendix. 1. Measurement Procedure The antenna gain is measured with StaLabmulti-probe measurement system. System OverviewMeasurement Axis 1 Wedge Absorbers 2 Cutting-edge Probes 3 High Accuracy Reference Antennas 4 High Precision Unlimited Sampling 5 Sturdy, Transparent Positioner 6 Accurate Stabilizers (References: MVG, StarLab50GHz multi-probe measurement system datasheet) Theta: 0 to 180 degree Phi+: 0 to 360 degree 11 Appendix. 2.

Project No: JB-Z1450 Page 1 of 33 Sony Global Manufacturing & Operations Corporation EMC/RF Test Laboratory, Main Lab. 8-4 Shiomi Kisarazu-shi Chiba-ken, 292-0834, Japan PHONE +81 438 37 2750 RADIO TEST REPORT (for Bluetooth Low Energy) Project No. : JB-Z1450 Client’s Control No. : AF25006 Client : Sony Corporation Client’s Address : 1-7-1 Konan Minato-ku Tokyo, 108-0075 Japan Product Name : Wireless Noise Canceling Stereo Headset Model No. : YY2985 FCC ID : AK8YY2985 Test Standard : 47 CFR Part 15 Subpart C Sample Receipt Date : August 1, 2025 Test Date : August 4, 2025 to August 22, 2025 Report Date : September 10, 2025 Test Result : Complied Notice : * These test results relate only to the items (combination equipment, test configuration, operation condition etc.) tested. * This report shall not be reproduced except in full, without written approval of the laboratory. * This report must not be used by the client to claim product endorsement by A2LA or any agency of the U.S. * Hereby certify that no party is subject to a denial of federal benefits pursuant to section 5301 of the Anti-Drug Abuse Act. * All test results are traceable to the national and / or international standards. * The testing in which “Non-accreditation” is displayed is outside the accreditation scopes in Sony Global Manufacturing & Operations Corporation EMC/ RF Test Laboratory. Reported by: Koji Ohyama Technical Manager EMC/RF Test Laboratory, Main Lab. Design Technology Division Approved Signatory: Koji Hayama Technical Manager EMC/RF Test Laboratory, Main Lab. Design Technology Division TESTING CERT #3203.01 Format No.:NV1-1-01 Version 5.0 Project No: JB-Z1450 Page 2 of 33 Sony Global Manufacturing & Operations Corporation EMC/RF Test Laboratory, Main Lab. 8-4 Shiomi Kisarazu-shi Chiba-ken, 292-0834, Japan PHONE +81 438 37 2750 TABLE OF CONTENTS 1. General Information .................................................................................................................................................... 3 1.1. Description of Equipment Under Test (EUT) ...................................................................................................... 3 1.2. Summary of Test Result ......................................................................................................................................... 4 1.3. Tested Methodology ................................................................................................................................................ 4 1.4. Measurement Procedures ...................................................................................................................................... 5 1.5. Test Location ............................................................................................................................................................ 7 1.6. Uncertainty .............................................................................................................................................................. 7 2. Test Specification.......................................................................................................................................................... 8 2.1. Validation ................................................................................................................................................................. 8 2.2. Operating Condition ................................................................................................................................................ 8 2.3. Special Accessories .................................................................................................................................................. 8 2.4. EUT Modifications .................................................................................................................................................. 8 2.5. Configuration of EUT System................................................................................................................................ 9 2.6. Typical setup arrangement .................................................................................................................................. 10 3. Test Data ..................................................................................................................................................................... 11 3.1. 6 dB Bandwidth ..................................................................................................................................................... 11 3.2. Maximum Peak Conducted Output Power ........................................................................................................ 12 3.3. Power Spectral Density ........................................................................................................................................ 13 3.4. Radiated Spurious Emissions .............................................................................................................................. 14 3.5. Conducted Spurious Emissions for Band Edge ................................................................................................. 28 4. Method of Calculation ................................................................................................................................................ 29 4.1. Maximum Peak Conducted Output Power ........................................................................................................ 29 4.2. Power …

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