APIJBLCESS3SEPortable Bluetooth Speaker

Harman International Industries, Inc Covered Equipment Certification Attestation Letter 2025-12-20 Nemko North America, Inc. 303 River Road Ottawa K1V 1H2 Canada ATTN.: Reviewing Engineer FCC ID:APIJBLCESS3SE Harman International Industries, Inc (“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. Harman International Industries, Inc (“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. Harman International Industries, Inc (“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: Terry Shi Title: Senior Prin.Engineer,Regulatory Compliance, Quality Company Name: Harman International Industries, Inc Address: 8500 Balboa Boulevard, Northridge, CA 91329, United States Phone: 86-75523189391 E-Mail: [email protected] Date: 2025-12-20

Harman International Industries, Inc U.S. Agent Designation for Service of Process - Certification Attestation Letter Harman International Industries, Inc 8500 Balboa Boulevard, Northridge, CA 91329, United States Federal Communication Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA 2025-12-20 Attestation Statement according to 2.911(d)(7) FCC ID: APIJBLCESS3SE TO WHOM IT MAY CONCERN: We, Harman International Industries, Inc designate ourselves to act as U.S. agent for service of process. Harman International Industries, Inc hereby acknowledges the obligation of the U.S. agent for service of process. Further Harman International Industries, Inc 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. Sincerely Applicant Signed/ Designated Agent Signed: Signature: Company name: Harman International Industries, Inc FRN: 0024748147 Address: 8500 Balboa Boulevard, Northridge, CA 91329, United States Contact Person: Terry Shi Telephone No: 86-75523189391 Email: [email protected]

Harman International Industries, Inc 2025-12-20 Nemko North America, Inc. 303 River Road Ottawa, Ontario, Canada K1V 1H2 AUTHORITY TO ACT AS AGENT - FCC On our behalf, I appoint Damon Hu, Guangdong Dongdian Testing Service Co.,Ltd.( Unit 2, Building 1, No.17, Zongbu 2nd Road, Songshan Lake Park, Dongguan, Guangdong, China, 523808), 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 FCC regulations will have affixed to it a label identical to that submitted for approval with this application. In signing this letter, Applicant certifies that neither the applicant nor any party to the application is not subject to a denial of Federal benefits, that include FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C. § 862 because of a conviction for possession or distribution of a controlled substance. See 47 CFR 1.2002(b) for the definition of a "party" for these purposes. For instances where our authorized agent signs the application for certification on our behalf, I acknowledge that all responsibility for complying with the terms and conditions for certification, as specified by Nemko North America Inc., still resides still resides with us. Sincerely, Printed name: Terry Shi Title: Senior Prin.Engineer,Regulatory Compliance, Quality Company Name: Harman International Industries, Inc Address: 8500 Balboa Boulevard, Northridge, CA 91329, United States Phone: 86-75523189391 E-Mail: [email protected] Date: 2025-12-20

Harman International Industries, Inc 2025-12-20 Nemko North America, Inc. 303 River Road Ottawa, Ontario, Canada K1V 1H2 REQUEST FOR CONFIDENTIALITY – FCC FCC ID: APIJBLCESS3SE Pursuant to Sections 0.457(d) and 0.459 of the Commission’s Rules and FCC Guidance document 726920, we hereby request permanent confidential treatment of exhibits identified as such in the table below and request they are permanently withheld from public review based on the documents containing trade secrets and proprietary information not customarily released to the public. The public disclosure of this information might be harmful to the applicant and provide unjustified benefits to its competitors. We also request short-term confidentiality on certain exhibits until the intended date of marketing as outlined below. We request the exhibits be withheld from public view for a period of 180 days. We attest marketing of the product will only commence after the period of short-term confidentiality expires, or if marketing is to commence before the requested number of days listed above, the grantee will inform Nemko to release the Short-Term Confidentiality information withheld on the FCC equipment authorization website. Exhibit Type of Confidentiality Requested Block Diagrams ☒ Permanent ☐ Short Term External Photos ------------------ ☒ Short Term Internal Photos ☐ Permanent* ☒ Short Term Operation Description ☒ Permanent ☐ Short Term Parts List & Placement/BOM ☒ Permanent ☐ Short Term Tune-Up Procedure ☐ Permanent ☐ Short Term Schematic Diagrams ☒ Permanent ☐ Short Term Test Setup Photos ------------------ ☒ Short Term User’s Manual ☐ Permanent* ☒ Short Term The asterisked items (*) require further information to be provided in this justification letter before permanent confidentiality will be extended to these exhibits. Please refer to FCC KDB 726920 D01 found at: https://apps.fcc.gov/oetcf/kdb/forms/FTSSearchResultPage.cfm?switch=P&id=41731 and review section II, 3) regarding specific information that must accompany these requests. Note: any documents held under the Short-Term confidentiality will automatically become public after the requested time if an appropriate extension request has not been received. Any exhibits (i.e., schematic diagrams) that may have already been requested to have “Permanent” confidentiality as shown above need not be repeated under Short-Term confidentiality request. Sincerely, Signed: Printed name: Terry Shi Title: Senior Prin.Engineer,Regulatory Compliance, Quality Company Name: Harman International Industries, Inc Address: 8500 Balboa Boulevard, Northridge, CA 91329, United States Phone: 86-75523189391 E-Mail: [email protected] Date: 2025-12-20

Guangdong Dongdian Testing Service Co., Ltd. Report No.: DDT-RE25103103-1E09 TRF No.: RT-4-E-02-601 FCC SAR Test Report Ver.1.1 Page 1 of 29 FCC AND ISED SAR TEST REPORT Applicant : Harman International Industries, Inc. Address of Applicant : 8500 Balboa Boulevard, Northridge, CA 91329, UNITED STATES Manufacturer : Harman International Industries, Inc. Address of Manufacturer : 8500 Balboa Boulevard, Northridge, CA 91329, UNITED STATES Equipment under Test : Portable Bluetooth Speaker Model No. : CHARGE ESSENTIAL 3 SE FCC ID : APIJBLCESS3SE IC : 6132A-JBLCESS3SE Test Standard(s) : Test Standard Used: IEEE Std. 1528-2013; IEC/IEEE 62209-1528:2020 FCC Rules and Regulations: 47 CFR § 2.1093 ISED Rules and Regulations: RSS-102 Issue6, Dec. 2023 Test Procedure Used: KDB447498 D02 v02r01, KDB447498 D04 v01, KDB 865664 D01 v01r04, KDB 865664 D02 v01r02 RSS-102.SAR.MEAS Issue 2, Aug. 2025 Report No. : DDT-RE25103103-1E09 Issue Date : 2025/12/30 Issue By : Guangdong Dongdian Testing Service Co., Ltd. Address of Laboratory : Unit 2, Building 1, No. 17, Zongbu 2nd Road, Songshan Lake Park, Dongguan, Guangdong, China, 523808 Guangdong Dongdian Testing Service Co., Ltd. Report No.: DDT-RE25103103-1E09 TRF No.: RT-4-E-02-601 FCC SAR Test Report Ver.1.1 Page 2 of 29 Table of Contents 1.General test information .....................................................................................................6 1.1.Description of EUT .............................................................................................................6 1.2.Accessories of EUT ............................................................................................................6 1.3.Assistant equipment used for test ......................................................................................6 1.4.Block diagram of EUT configuration for test .......................................................................6 1.5.Test environment conditions...............................................................................................7 1.6.Test laboratory....................................................................................................................7 2.Summary of test results ......................................................................................................8 2.1.Report SAR results .............................................................................................................8 2.2.RF exposure limits ..............................................................................................................8 3.SAR measurements system configuration .........................................................................9 3.1.The SAR measurement system..........................................................................................9 3.2.Isotropic E-field probe EX3DV4 ........................................................................................10 3.3.SAM twin phantom ...........................................................................................................10 3.4.ELI phantom .....................................................................................................................11 3.5.Data acquisition electronics (DAE) ...................................................................................11 3.6.Device holder for transmitters...........................................................................................12 4.Measurement procedure ..................................................................................................13 4.1.Scanning procedure .........................................................................................................13 5.Description of test position ...............................................................................................17 5.1.Body-worn accessory configurations ................................................................................17 5.2.Extremity exposure configurations ...................................................................................18 5.3.Head exposure configurations ..........................................................................................18 6.RF exposure conditions ....................................................................................................19 6.1.EUT Test sides .................................................................................................................19 6.2.Standalone SAR test exclusion considerations ................................................................19 7.SAR system verification procedure ..................................................................................20 7.1.Tissue simulate liquid .......................................................................................................20 7.1.1.Target dielectric properties of head tissue-equivalent material ........................................20 7.1.2.Measurement for tissue simulate liquid ............................................................................20 7.2.SAR system validation......................................................................................................22 7.2.1.Justification for extended SAR dipole calibrations............................................................22 7.2.2.Validation test setup photograph ......................................................................................23 7.2.3.Summary system validation results ..................................................................................24 7.2.4.Detailed system validation results ....................................................................................24 8.Equipment list ...................................................................................................................25 Guangdong Dongdian Testing Service Co., Ltd. Report No.: DDT-RE25103103-1E09 TRF No.: RT-4-E-02-601 FCC SAR Test Report Ver.1.1…

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Guangdong Dongdian Testing ServiceCo.,Ltd. Report No.: DDT-RE25103103-1E09 Page 1 of 3 Appendix A System Validation Plots Guangdong Dongdian Testing ServiceCo.,Ltd. Report No.: DDT-RE25103103-1E09 Page 2 of 3 Table of Contents 1. D2450V2-SN: 904 Validation Plot ..................................................................................... 3 Guangdong Dongdian Testing ServiceCo.,Ltd. Report No.: DDT-RE25103103-1E09 Page 3 of 3 1. D2450V2-SN: 904 Validation Plot

Guangdong Dongdian Testing ServiceCo.,Ltd. Report No.: DDT-RE25103103-1E09 Page 1 of 3 Appendix B Highest Test Plots Guangdong Dongdian Testing ServiceCo.,Ltd. Report No.: DDT-RE25103103-1E09 Page 2 of 3 Table of Contents 1. 2.4G Body-worn 0mm SAR .................................................................................................... 3 Guangdong Dongdian Testing ServiceCo.,Ltd. Report No.: DDT-RE25103103-1E09 Page 3 of 3 1. 2.4G Body-worn 0mm SAR

Guangdong Dongdian Testing ServiceCo.,Ltd. Report No.: DDT-RE25103103-1E09 Page 1 of 30 Appendix C Calibration Certification Guangdong Dongdian Testing ServiceCo.,Ltd. Report No.: DDT-RE25103103-1E09 Page 2 of 30 Table of Contents 1. D2450V2-SN: 904 Calibration certification ............................................................................. 3 2. D5GHzV2-SN: 1148 Calibration certification .......................................................................... 9 3. DAE4-SN: 1366 Calibration certification............................................................................... 19 4. EX3DV4-SN: 3906 Calibration certification .......................................................................... 22 Guangdong Dongdian Testing ServiceCo.,Ltd. Report No.: DDT-RE25103103-1E09 Page 3 of 30 1. D2450V2-SN: 904 Calibration certification Guangdong Dongdian Testing ServiceCo.,Ltd. Report No.: DDT-RE25103103-1E09 Page 4 of 30 Guangdong Dongdian Testing ServiceCo.,Ltd. Report No.: DDT-RE25103103-1E09 Page 5 of 30 Guangdong Dongdian Testing ServiceCo.,Ltd. Report No.: DDT-RE25103103-1E09 Page 6 of 30 Guangdong Dongdian Testing ServiceCo.,Ltd. Report No.: DDT-RE25103103-1E09 Page 7 of 30 Guangdong Dongdian Testing ServiceCo.,Ltd. Report No.: DDT-RE25103103-1E09 Page 8 of 30 Guangdong Dongdian Testing ServiceCo.,Ltd. Report No.: DDT-RE25103103-1E09 Page 9 of 30 2. D5GHzV2-SN: 1148 Calibration certification Guangdong Dongdian Testing ServiceCo.,Ltd. Report No.: DDT-RE25103103-1E09 Page 10 of 30 Guangdong Dongdian Testing ServiceCo.,Ltd. Report No.: DDT-RE25103103-1E09 Page 11 of 30 Guangdong Dongdian Testing ServiceCo.,Ltd. Report No.: DDT-RE25103103-1E09 Page 12 of 30 Guangdong Dongdian Testing ServiceCo.,Ltd. Report No.: DDT-RE25103103-1E09 Page 13 of 30 Guangdong Dongdian Testing ServiceCo.,Ltd. Report No.: DDT-RE25103103-1E09 Page 14 of 30 Guangdong Dongdian Testing ServiceCo.,Ltd. Report No.: DDT-RE25103103-1E09 Page 15 of 30 Guangdong Dongdian Testing ServiceCo.,Ltd. Report No.: DDT-RE25103103-1E09 Page 16 of 30 Guangdong Dongdian Testing ServiceCo.,Ltd. Report No.: DDT-RE25103103-1E09 Page 17 of 30 Guangdong Dongdian Testing ServiceCo.,Ltd. Report No.: DDT-RE25103103-1E09 Page 18 of 30 Guangdong Dongdian Testing ServiceCo.,Ltd. Report No.: DDT-RE25103103-1E09 Page 19 of 30 3. DAE4-SN: 1366 Calibration certification Guangdong Dongdian Testing ServiceCo.,Ltd. Report No.: DDT-RE25103103-1E09 Page 20 of 30 Guangdong Dongdian Testing ServiceCo.,Ltd. Report No.: DDT-RE25103103-1E09 Page 21 of 30 Guangdong Dongdian Testing ServiceCo.,Ltd. Report No.: DDT-RE25103103-1E09 Page 22 of 30 4. EX3DV4-SN: 3906 Calibration certification Guangdong Dongdian Testing ServiceCo.,Ltd. Report No.: DDT-RE25103103-1E09 Page 23 of 30 Guangdong Dongdian Testing ServiceCo.,Ltd. Report No.: DDT-RE25103103-1E09 Page 24 of 30 Guangdong Dongdian Testing ServiceCo.,Ltd. Report No.: DDT-RE25103103-1E09 Page 25 of 30 Guangdong Dongdian Testing ServiceCo.,Ltd. Report No.: DDT-RE25103103-1E09 Page 26 of 30 Guangdong Dongdian Testing ServiceCo.,Ltd. Report No.: DDT-RE25103103-1E09 Page 27 of 30 Guangdong Dongdian Testing ServiceCo.,Ltd. Report No.: DDT-RE25103103-1E09 Page 28 of 30 Guangdong Dongdian Testing ServiceCo.,Ltd. Report No.: DDT-RE25103103-1E09 Page 29 of 30 Guangdong Dongdian Testing ServiceCo.,Ltd. Report No.: DDT-RE25103103-1E09 Page 30 of 30

South Star Technology Hong Kong Co.,LTD Page 1 / 9 QP-21-B01/A2 APPROVAL SHEET Customer Name Tonly Product Model Charge ESS3 Customer P/N Specifications BTantenna Southstar P/N 3.N204.0517 Production date 2025.09.16 Revision Rev.3.0 Southstar FICTIONDQER&D Customer PURQCR&D Manufacturers: SHENZHEN SOUTH STAR TECHNOLOGY CO.,LTD Office address: 803, Tianshu block, Xinggang tongchuanghui, No.6099, Bao'an Avenue, Xinhe community, Fuhai street, Bao'an District, Shenzhen Production address:No.3,Chigang Nanfang 1st Road, Humen Town, Dongguan City, Guangdong Province Tel：0755-27474071 0769-88086190 Http://www.southstar-tech.com Sample seal SouthStarTechnologyHongKongCo.,LTD Page 2 / 9 QP-21-B01/A2 History VersionDateChangeDescriptionNote Rev.1.02025.09.02 Firsteditionspecification sheet Rev.2.02025.09.05Updatethedrawing Rev.3.02025.09.16 Updatethedrawingsand optimizetheantenna SouthStarTechnologyHongKongCo.,LTD Page 3 / 9 QP-21-B01/A2 Index 一、Cover······························1 二、Colophon·····························2 三、Index······························3 四、Thebasicparameters·······················4 五、ProductDrawing·························5 六、TestEquipment&Conditions···················6 七、TestReport···························7 八、Antennaassembly·························8 九、Packingmethod··························9 SouthStarTechnologyHongKongCo.,LTD Page 4 / 9 QP-21-B01/A2 Thebasicparameters A.ElectricalCharacteristics Frequency2400MHz~2500MHz VSWR <2 Efficiency >50% Impedance50Ohm PolarizationLinear PeakGain Antennatype 2.12dBi PIFA B.Material&MechanicalCharacteristics MaterialofRadiatorFPCBlack CableType1.13wirediameterBlack ConnectorTypeFirst-generationterminal C.Environmental OperationTemperature-30°C~+65°C StorageTemperature-40°C~+70 ̊C A New drawing Note： 1. Marked "*" is the key size, and Marking "CpK" requires process capability analysis； 2. Unmarked tolerance refer to the Undeclared tolerance table; 3. The electrical property meets the requirements of the specification; 4. All parts shall meet the requirements of ROHS2.0、SVHC、CP65、TSCA、REACH+ Appendix 17、VOC、Halogen-Free. RemarkDateRev Description ZJY 2025-12-12 CBJ 2025-12-12 LSL 2025-12-12 Charge ESS3 BT Antenna 3.N204.0517 / 1.F03.0361 2.A01.2848 1.Z02.0029 FPC Cable Sponge 1 2 3 PI/Black，T=0.1mm 1.13 Black cable+Mini Con.-1 Black/45*20*3mm 1 1 1 2025-12-12 B A 1 Star South Charge ESS3 BT V0.5 Manual tearing bit （1） （2） （3） （4） （5） The terminal direction is as shown in the figure. No.Name Specification AmountRemark Part NO. FIT ±0.1 ±0.2 ±0.3 ±0.5 ±0.8 0.1 Ø0.1 0.1 0.1 ±1.0° ±1.2 0.1 1 of 1 1000 10 A B C D 12 3 4 56 7 8 12 34 5 678 A B C D Unit mm Scale Rev Designed by RF by Approved by Project Part Name Part No. Third Angle 0.5～6 ＞6～30 ＞30～120 ＞120～400 ＞400～ Angle South Star Connector orientation standard ±45° ±90° Don't control CableL≤100 0＜L≤200 Cable L＞200 ＞1000 Undeclared tolerance table Customer P/N Page Dongguan South Star Technology Group co.,Ltd SouthStarTechnologyHongKongCo.,LTD Page 6 / 9 QP-21-B01/A2 TestEquipment&Conditions 1.NetWorkAnalyzers: KeysightE5071C 2.Comprehensivetester： CMW500、MT8000A、MT8862A 3.3DChamberTestSystem: South Star Technology Hong Kong Co.,LTD Page 7 / 9 QP-21-B01/A2 Antenna Impedance:S11 Efficiency & Gain： South Star Technology Hong Kong Co.,LTD Page 8 / 9 QP-21-B01/A2 Antenna 3D & 2D pattern： OTA： 2. 100PCS/per Bag 1. The Producdt 3. Packing (subject to actual packing) . 深 圳 市 南 斗 星 科 技 有 限 公 司 客户 日期 品名 料号 数量 客户料号 SHENZHEN SOUTHSTAR TECH CO.LTD 订单号 订单总数 备注 检验员 TEL：0755-27474071 FAX29976316 page: 1 of 1 ZJY LSL Charge ESS3 Antenna 2025-12-12 A Packaging Specifications South Star Date： DEAIGNED By： APPROVED By： Name : Version： Customer： Label

Guangdong Dongdian Testing Service Co., Ltd. Report No.:DDT-RE25103103-1E02 TRF: RT-4-E-005Page 1 of 86 RADIO TEST REPORT Applicant : Harman International Industries, Inc. Address of Applicant : 8500 Balboa Boulevard, Northridge, CA 91329, UNITED STATES Manufacturer : Harman International Industries, Inc. Address of Manufacturer : 8500 Balboa Boulevard, Northridge, CA 91329, UNITED STATES Equipment under Test : Portable Bluetooth Speaker Model No. : CHARGE ESSENTIAL 3 SE FCC ID : APIJBLCESS3SE IC : 6132A-JBLCESS3SE Test Standard(s) : FCC Rules and Regulations Part 15 Subpart C, ANSI C63.10-2020, RSS-247 Issue 4 July 24, 2025, RSS-Gen Issue 5, Apr. 2018, Amendment 2 (February 2021), ANSI C63.10-2020+Cor.1-2023+C63.10a- 2024+Errata to C63.10a-2024 Report No. : DDT-RE25103103-1E02 Issue Date : 2025/12/29 Issue By : Guangdong Dongdian Testing Service Co., Ltd. Unit 2, Building 1, No. 17, Zongbu 2nd Road, Songshan Lake Park, Dongguan, Guangdong, China, 523808 Guangdong Dongdian Testing Service Co., Ltd. Report No.:DDT-RE25103103-1E02 TRF: RT-4-E-005Page 2 of 86 Table of Contents 1.Summary of Test Results .............................................................................................7 2.General Test Information..............................................................................................8 2.1.Description of EUT .......................................................................................................8 2.2.Accessories of EUT......................................................................................................9 2.3.Block diagram of EUT configuration for test.................................................................9 2.4.Decision of final test mode ...........................................................................................9 2.5.Deviations of test standard.........................................................................................10 2.6.Test environment conditions ......................................................................................10 2.7.Test laboratory ...........................................................................................................10 2.8.Measurement uncertainty...........................................................................................11 3.Equipment Used During Conductive Test ..................................................................12 4.6 dB Bandwidth ..........................................................................................................13 4.1.Block diagram of test setup ........................................................................................13 4.2.Limits ..........................................................................................................................13 4.3.Test procedure ...........................................................................................................13 4.4.Test result...................................................................................................................14 4.5.Test graphs ................................................................................................................15 5.99% Bandwidth ..........................................................................................................17 5.1.Block diagram of test setup ........................................................................................17 5.2.Limits ..........................................................................................................................17 5.3.Test procedure ...........................................................................................................17 5.4.Test result...................................................................................................................18 5.5.Test graphs ................................................................................................................19 6.Maximum Peak Output Power....................................................................................21 6.1.Block diagram of test setup ........................................................................................21 6.2.Limits ..........................................................................................................................21 6.3.Test procedure ...........................................................................................................21 6.4.Test result...................................................................................................................22 6.5.Test graphs ................................................................................................................23 7.Power Spectral Density ..............................................................................................25 7.1.Block diagram of test setup ........................................................................................25 7.2.Limits ..........................................................................................................................25 7.3.Test procedure ...........................................................................................................25 7.4.Test result...................................................................................................................26 7.5.Test graphs ................................................................................................................27 8.Band Edge Compliance (Conducted Method)............................................................29 Guangdong Dongdian Testing Service Co., Ltd. Report No.:DDT-RE25103103-1E02 TRF: RT-4-E-005Page 3 of 86 8.1.Block diagram of test setup ........................................................................................29 8.2.Limits ..........................................................................................................................29 8.3.Tes…

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Guangdong Dongdian Testing Service Co., Ltd. Report No.:DDT-RE25103103-1E02 TRF:RT-4-E-005Page 51 of 86 (c) Change modulation type of device if practicable. (d) Change power supply range from 85% to 115% of the rated supply voltage (e) Rotated EUT though three orthogonal axes to determine the attitude of EUT arrangement produces highest emissions. Spectrum frequency from 9 kHz to 25 GHz (tenth harmonic of fundamental frequency) was investigated, and no any obvious emission were detected from 18 GHz to 25 GHz, so below final test was performed with frequency range from 9 kHz to 18 GHz. (4) For final emissions measurements at each frequency of interest, the EUT was rotated and the antenna height was varied between 1 m and 4 m in order to maximize the emission. Measurements in both horizontal and vertical polarities were made and the data was recorded. In order to find the maximum emission, the relative positions of equipment and all of the interface cables were changed according to ANSI C63.10 on Radiated Emission test. (5) The emissions from 9 kHz to 1 GHz were measured based on CISPR QP detector except for the frequency bands 9 - 90 kHz, 110 - 490 kHz, for emissions from 9 kHz - 90 kHz,110 kHz - 490 kHz and above 1 GHz were measured based on average detector, for emissions above 1 GHz, peak emissions also be measured and need comply with Peak limit. (6) The emissions from 9 kHz to 1 GHz, QP or average values were measured with EMI receiver with below RBW. Frequency bandRBW 9 kHz - 150 kHz200 Hz 150 kHz - 30 MHz9 kHz 30 MHz - 1 GHz120 kHz (7) For emissions above 1GHz, both Peak and Average level were measured with Spectrum Analyzer, and the RBW is set at 1 MHz, VBW is set at 3 MHz for Peak measure; According ANSI C63.10 clause 4.1.5.2.2 procedure for average measure. (8) For portable device, X axis, Y axis, Z axis are tested, and worse setup is reported. (9) According exploratory test, the emission levels are 20 dB below the limit detected from 9 kHz to 30 MHz and 18 GHz to 25 GHz, so the final test was performed with frequency range from 30 MHz to 18 GHz and recorded in below. (10) For 30 MHz ~ 25 GHz: (Scan with all mode, the worst case is reported) (11) For emissions below 1 GHz, according exploratory explorer test, when change Tx mode and channel, have no distinct influence on emissions level, so for emissions below 1 GHz, the final test was only performed with EUT working in worst mode. 12.6. Test result PASS. (See below detailed test result) Guangdong Dongdian Testing Service Co., Ltd. Report No.:DDT-RE25103103-1E02 TRF:RT-4-E-005Page 52 of 86 12.7. Test data TR-4-E-009 Radiated Emission Test Result Test Date:2025-11-20Tested By:Lin Guoyuan EUT:Portable Bluetooth SpeakerModel Number:CHARGE ESS…

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