APITUNEFLEX2BLUETOOTH HEADSET

Harman International Industries, Inc Covered Equipment Certification Attestation Letter 2024-07-01 Nemko North America, Inc. 303 River Road Ottawa K1V 1H2 Canada ATTN.: Reviewing Engineer FCC ID:APITUNEFLEX2 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. 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: 2024-07-01

HarmanInternationalIndustries,Inc HarmanInternationalIndustries,Inc 8500 BalboaBoulevard,Northridge,CA 91329,UnitedStates , Northridge,CA 91329,United States FederalCommunicationCommission Authorizationand EvaluationDivision 7435OaklandMillsRoad Columbia,MD 21046 USA 2024-07-01 AttestationStatementaccordingto 2.911(d)(7) FCC ID: APITUNEFLEX2 TO WHOMIT MAYCONCERN: We, HarmanInternationalIndustries,Inc designateourselvesto act as U.S. agentfor service of process. HarmanInternationalIndustries,Inc herebyacknowledgesthe obligationof the U.S. agent for serviceof process.FurtherHarmanInternationalIndustries,Inc acceptsto maintainan agentfor no less thanone year afterthe granteehas terminatedall marketingand importationor the conclusionof any Commission-relatedproceedinginvolvingthe equipment. Sincerely Signature: Companyname:HarmanInternationalIndustries,Inc FRN:0024748147 Address:8500BalboaBoulevard,Northridge,CA 91329,UnitedStates ContactPerson:TerryShi TelephoneNo: 86-75523189391 Email:[email protected]

Harman International Industries, Inc 2024-07-01 Nemko North America, Inc. 303 River Road Ottawa, Ontario, Canada K1V 1H2 AUTHORITY TO ACT AS AGENT - FCC On our behalf, I appointDamon 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 residesstill 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: 2024-07-01

Harman International Industries, Inc. Product Similarity Declaration 2024-07-01 The product:BLUETOOTH HEADSET Model: TUNE FLEX 2 FCC ID:APITUNEFLEX2 We (Harman International Industries, Inc.) hereby declare that the left side and the right side of the headset using the same RF chip, PCB because of the left and right ear layout needs to be different but does not affect the RF characteristics, so they can use one same FCC ID. Sincerely, Signed : Printed name: Terry Shi Title: 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: 2024-07-01

Harman International Industries, Inc 2024-07-01 Nemko North America, Inc. 303 River Road Ottawa, Ontario, Canada K1V 1H2 REQUEST FOR CONFIDENTIALITY – FCC FCC ID: APITUNEFLEX2 Pursuant to Sections 0.457(d) and 0.459 of the Commission’s Rules andFCC 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 ofinsert number of 180 days (cannot exceed 180 days)days. We attest marketing of the product will only commence after the period of short-term confidentiality expires, or if marketing is to commence beforethe 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. ExhibitType 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=41731and 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: 2024-07-01

南斗星电子（深圳）有限公司 SOUTHSTARELECTRONICS(SHENZHEN)CO.,LTD Page 1 / 10 QP-21-B01/A2 承认书 APPROVALSHEET 客户名称CustomerName天键 产品型号ProductModelMB-8935B 客户料号CustomerP/N216-000167-0 规格描述Specifications耳机L天线/LDS+触摸/30.08+6.18*1.77/Pc基材 南斗星料号SouthstarP/N3.N203.0062 制作日期Productiondate2024.6.27 制作版本Revision3.0 南斗星（Southstar） 编制（FICTION）品质（DQE）研发（R&D） 客户（Customer） 采购（PUR）品质（QC）研发（R&D） 电 制造厂商：南斗星电子（深圳）有限公司 Manufacturer: South Star Electronics (Shenzhen) Co., LTD 办公地址：深圳市宝安区福海街道新和社区宝安大道 6099 号星港同创汇天枢座 803 Office Address: 803, Tianshu Block, Xinggang Tongchuanghui, No.6099 Baoan Avenue, Xinhe Community, Fuhai Street, Baoan District, Shenzhen 制造地址：广东省东莞市虎门镇赤岗南坊一路 3 号 Manufacturing address: No. 3, Chigang Nanfang Road, Humen Town, Dongguan City, Guangdong Province 话：0755-27474071 0769-88086190 网 址：//www.southstar-tech.com 样品封订 南斗星电子（深圳）有限公司 SOUTHSTARELECTRONICS(SHENZHEN)CO.,LTD Page 2 / 10 QP-21-B01/A2 承认书变更履历 版本日期变更描述备注 1.05.24初版规格书 2.06.24增加客户料号 3.0 6.27 南斗星电子（深圳）有限公司 SOUTHSTARELECTRONICS(SHENZHEN)CO.,LTD Page 3 / 10 QP-21-B01/A2 目录 Index 一、封面（Cover）··························1 二、版本记录（Colophon）·······················2 三、目录（Index）··························3 四、基本参数（Thebasicparameters）··················4 五、工程图纸（ProductDrawing）···················5 六、测试设备（TestEquipment&Conditions）··············6 七、测试报告（TestReport）·····················7-8 八、包装方式（Packingmethod）····················9 南斗星电子（深圳）有限公司 SOUTHSTARELECTRONICS(SHENZHEN)CO.,LTD Page 4 / 10 QP-21-B01/A2 基本参数(Thebasicparameters) A.电性能ElectricalCharacteristics Frequency频率2400MHz~2480MHz VSWR电压驻波比 <2 Efficiency效率 >20% Impedance阻抗50Ohm Polarization极化Linear PeakGain最大增益 Antennatype天线类型 -1.94dBi PIFA B.材料&物理性能Material&MechanicalCharacteristics 射频材料MaterialofRadiatorLDS支架天线 射频线类型CableTypeN/A 接头类型ConnectorTypeN/A C.环境Environmental 工作温度OperationTemperature-30°C~+65°C 存放温度StorageTemperature-40°C~+70 ̊C A 技术要求： 1.标“*”尺寸为重点管控尺寸,标“CpK”尺寸需做制程能力分析； 2.未标注公差依照图纸未注公差表； 3.电性符合规格书要求； 4.环保符合 ROHS 2.0、REACH(SVHC+附录17）、 CP65、 POPs 、 TSCA。 编号 品名 规格描述 数量 备注 料号 FIT A ±0.05 ±0.1 ±0.2 ±0.5 ±0.8 0.1 Ø0.1 0.1 0.1 ±1.0° 梅海金 2024-06-27 ±1.2 0.1 新发文 备注 日期 版本 描述 何坚 2024-06-27 郭伟 2024-06-27 1/1 1000 未 注 公 差 表 A B C D 12 3 4 56 7 8 12 34 5 678 A B C D mm 版本 第三视角 0.5～6 ＞6～30 ＞30～120 ＞120～400 ＞400～ 角度 South Star 端子方向标准 ±45° ±90° 不管控 深 圳 市 南 斗 星 科 技 有 限 公 司 Shenzhen South Star Technology Co.,Ltd 东 莞 市 南 斗 星 科 技 有 限 公 司 Dongguan South Star Technology Co.,Ltd 线长L≤100 100＜L≤200 线长L＞200 ＞1000 比 例 单 位 项 目 品 名 料 号 客户料号 射 频 结 构 审 核 页码 MB-8935B / 左耳天线 3.N203.0062 2.A12.0092左耳支架化镀1 镀铜8-12um，镀镍2-4um,黑色 1 2024-06-27 L + 南斗星电子（深圳）有限公司 SOUTHSTARELECTRONICS(SHENZHEN)CO.,LTD Page 6 / 10 QP-21-B01/A2 测试设备(TestEquipment&Conditions) 1.网络分析仪NetWorkAnalyzers: KeysightE5071C 2.综合测试仪Comprehensivetester： CMW500、MT8000A、MT8862A 3.3D暗室测试系统3DChamberTestSystem: 南斗星电子（深圳）有限公司 SOUTHSTARELECTRONICS(SHENZHEN)CO.,LTD Page 7 / 10 QP-21-B01/A2 天线阻抗AntennaImpedance:S11 效率&增益Efficiency&Gain： PeakGain:-1.94dBi 南斗星电子（深圳）有限公司 SOUTHSTARELECTRONICS(SHENZHEN)CO.,LTD Page 8 / 10 QP-21-B01/A2 天线3D&2D方向图Antenna3D&2Dpattern

Guangdong Dongdian Testing Service Co., Ltd. Report No.: DDT-RE24052314-1E08 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 : BLUETOOTH HEADSET Model No. : TUNE FLEX 2 FCC ID : APITUNEFLEX2 IC : 6132A-TUNEFLEX2 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 Issue5, Mar. 2015 Test Procedure Used: KDB447498 D04 v01, KDB 865664 D01 v01r04, KDB 865664 D02 v01r02 Report No. : DDT-RE24052314-1E08 Issue Date : 2024/07/03 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-RE24052314-1E08 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 ............................................................................................... 6 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 ................................................................................................ 15 5.1. Body-worn accessory configurations ................................................................................ 15 5.2. Extremity exposure configurations .................................................................................... 16 6. RF exposure conditions .................................................................................................... 17 6.1. EUT Test sides .................................................................................................................. 17 6.2. Standalone SAR test exclusion considerations ................................................................ 17 7. SAR system verification procedure ................................................................................... 19 7.1. Tissue simulate liquid ........................................................................................................ 19 7.1.1. Target dielectric properties of head tissue-equivalent material ........................................ 19 7.1.2. Measurement for tissue simulate liquid ............................................................................ 19 7.2. SAR system validation ...................................................................................................... 21 7.2.1. Justification for extended SAR dipole calibrations ............................................................ 22 7.2.2. Validation test setup photograph ...................................................................................... 22 7.2.3. Summary system validation results .................................................................................. 23 7.2.4. Detailed system validation results ..................................................................................... 23 8. Equipment list .................................................................................................................... 24 9. Measurement uncertainty .................................................................................................. 25 Guangdong Dongdian Testing Service Co., Ltd. Report No.: DDT-RE24052314-1E08 TRF No.: RT-4-E-02-601 FCC SAR Tes…

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Guangdong Dongdian Testing ServiceCo.,Ltd. Report No.: DDT-RE24052314-1E08 Page 1 of 3 Appendix A System Validation Plots Guangdong Dongdian Testing ServiceCo.,Ltd. Report No.: DDT-RE24052314-1E08 Page 2 of 3 Table of Contents 1. D2450V2-SN: 904 Validation Plot ..................................................................................... 3 Guangdong Dongdian Testing ServiceCo.,Ltd. Report No.: DDT-RE24052314-1E08 Page 3 of 3 1. D2450V2-SN: 904 Validation Plot

Guangdong Dongdian Testing ServiceCo.,Ltd. Report No.: DDT-RE24052314-1E08 Page 1 of 4 Appendix B Highest Test Plots Guangdong Dongdian Testing ServiceCo.,Ltd. Report No.: DDT-RE24052314-1E08 Page 2 of 4 Table of Contents 1. BT Head-worn 0mm SAR ....................................................................................................... 3 Guangdong Dongdian Testing ServiceCo.,Ltd. Report No.: DDT-RE24052314-1E08 Page 3 of 4 1. BT Head-worn 0mm SAR Guangdong Dongdian Testing ServiceCo.,Ltd. Report No.: DDT-RE24052314-1E08 Page 4 of 4

Guangdong Dongdian Testing ServiceCo.,Ltd. Report No.: DDT-RE24052314-1E08 Page 1 of 30 Appendix C Calibration Certification Guangdong Dongdian Testing ServiceCo.,Ltd. Report No.: DDT-RE24052314-1E08 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-RE24052314-1E08 Page 3 of 30 1. D2450V2-SN: 904 Calibration certification Guangdong Dongdian Testing ServiceCo.,Ltd. Report No.: DDT-RE24052314-1E08 Page 4 of 30 Guangdong Dongdian Testing ServiceCo.,Ltd. Report No.: DDT-RE24052314-1E08 Page 5 of 30 Guangdong Dongdian Testing ServiceCo.,Ltd. Report No.: DDT-RE24052314-1E08 Page 6 of 30 Guangdong Dongdian Testing ServiceCo.,Ltd. Report No.: DDT-RE24052314-1E08 Page 7 of 30 Guangdong Dongdian Testing ServiceCo.,Ltd. Report No.: DDT-RE24052314-1E08 Page 8 of 30 Guangdong Dongdian Testing ServiceCo.,Ltd. Report No.: DDT-RE24052314-1E08 Page 9 of 30 2. D5GHzV2-SN: 1148 Calibration certification Guangdong Dongdian Testing ServiceCo.,Ltd. Report No.: DDT-RE24052314-1E08 Page 10 of 30 Guangdong Dongdian Testing ServiceCo.,Ltd. Report No.: DDT-RE24052314-1E08 Page 11 of 30 Guangdong Dongdian Testing ServiceCo.,Ltd. Report No.: DDT-RE24052314-1E08 Page 12 of 30 Guangdong Dongdian Testing ServiceCo.,Ltd. Report No.: DDT-RE24052314-1E08 Page 13 of 30 Guangdong Dongdian Testing ServiceCo.,Ltd. Report No.: DDT-RE24052314-1E08 Page 14 of 30 Guangdong Dongdian Testing ServiceCo.,Ltd. Report No.: DDT-RE24052314-1E08 Page 15 of 30 Guangdong Dongdian Testing ServiceCo.,Ltd. Report No.: DDT-RE24052314-1E08 Page 16 of 30 Guangdong Dongdian Testing ServiceCo.,Ltd. Report No.: DDT-RE24052314-1E08 Page 17 of 30 Guangdong Dongdian Testing ServiceCo.,Ltd. Report No.: DDT-RE24052314-1E08 Page 18 of 30 Guangdong Dongdian Testing ServiceCo.,Ltd. Report No.: DDT-RE24052314-1E08 Page 19 of 30 3. DAE4-SN: 1366 Calibration certification Guangdong Dongdian Testing ServiceCo.,Ltd. Report No.: DDT-RE24052314-1E08 Page 20 of 30 Guangdong Dongdian Testing ServiceCo.,Ltd. Report No.: DDT-RE24052314-1E08 Page 21 of 30 Guangdong Dongdian Testing ServiceCo.,Ltd. Report No.: DDT-RE24052314-1E08 Page 22 of 30 4. EX3DV4-SN: 3906 Calibration certification Guangdong Dongdian Testing ServiceCo.,Ltd. Report No.: DDT-RE24052314-1E08 Page 23 of 30 Guangdong Dongdian Testing ServiceCo.,Ltd. Report No.: DDT-RE24052314-1E08 Page 24 of 30 Guangdong Dongdian Testing ServiceCo.,Ltd. Report No.: DDT-RE24052314-1E08 Page 25 of 30 Guangdong Dongdian Testing ServiceCo.,Ltd. Report No.: DDT-RE24052314-1E08 Page 26 of 30 Guangdong Dongdian Testing ServiceCo.,Ltd. Report No.: DDT-RE24052314-1E08 Page 27 of 30 Guangdong Dongdian Testing ServiceCo.,Ltd. Report No.: DDT-RE24052314-1E08 Page 28 of 30 Guangdong Dongdian Testing ServiceCo.,Ltd. Report No.: DDT-RE24052314-1E08 Page 29 of 30 Guangdong Dongdian Testing ServiceCo.,Ltd. Report No.: DDT-RE24052314-1E08 Page 30 of 30

Guangdong Dongdian Testing ServiceCo.,Ltd. Report No.: DDT-RE24052314-1E08 Page 1 of 8 Appendix D Test setup photograph Guangdong Dongdian Testing ServiceCo.,Ltd. Report No.: DDT-RE24052314-1E08 Page 2 of 8 Table of Contents 1. 2.4G Tissue Head-worn Photograph ...................................................................................... 3 Guangdong Dongdian Testing ServiceCo.,Ltd. Report No.: DDT-RE24052314-1E08 Page 3 of 8 1. 2.4G Tissue Head-worn Photograph L Top Side-0mm L Bottom Side-0mm Guangdong Dongdian Testing ServiceCo.,Ltd. Report No.: DDT-RE24052314-1E08 Page 4 of 8 L Left Side-0mm L Right Side-0mm Guangdong Dongdian Testing ServiceCo.,Ltd. Report No.: DDT-RE24052314-1E08 Page 5 of 8 L Front side-0mm L Back Side-0mm Guangdong Dongdian Testing ServiceCo.,Ltd. Report No.: DDT-RE24052314-1E08 Page 6 of 8 R Top Side-0mm R Bottom Side-0mm Guangdong Dongdian Testing ServiceCo.,Ltd. Report No.: DDT-RE24052314-1E08 Page 7 of 8 R Left Side-0mm R Right Side-0mm Guangdong Dongdian Testing ServiceCo.,Ltd. Report No.: DDT-RE24052314-1E08 Page 8 of 8 R Front Side-0mm R Back Side-0mm

Guangdong Dongdian Testing ServiceCo.,Ltd. Page 1 of 5 Appendix E Dipole Antenna self-calibration Guangdong Dongdian Testing ServiceCo.,Ltd. Page 2 of 5 Table of Contents 1. Calibration Date ...................................................................................................................... 3 2. Calibration Items ..................................................................................................................... 3 3. Standards ................................................................................................................................ 5 4. Laboratory ............................................................................................................................... 5 5. Calibration Results .................................................................................................................. 5 Guangdong Dongdian Testing ServiceCo.,Ltd. Page 3 of 5 1. Calibration Date Calibration Date Oct.20,2023, Due to Oct.19,2024 2. Calibration Items Dipole Antenna self-calibration 1、 Calibration Method Immediate re-calibration is required for the following conditions. 1) According to KDB 865664 D01, When the most recent return-loss result, measured at least annually, deviates by more than 20% from the previous measurement (i.e. value in dB  0.2) or not meeting the required 20 dB minimum return-loss requirement. 2) When the most recent measurement of the real or imaginary parts of the impedance, measured at least annually, deviates by more than 5 Ω from the previous measurement. 3）When the measured SAR deviates from the calibrated SAR value by more than 10% due to changes in physical, mechanical, electrical or other relevant dipole conditions; i.e., the error is not introduced by incorrect measurement procedures or other issues relating to the SAR measurement system. 2、 Calibration Purpose Demonstrate that SAR target, the impedance and return loss of the dipole remain stable as required 3、 Test The Product Manufacturer Speag Name 2450MHz Dipole antenna Model number D2450V2 Environment temperature 20.8°C Look pictures As shown in figure 1 Manufacturer Speag Name 5GHz Dipole antenna Model numbe D5GHZV2 Environment temperature 20.8°C Look pictures As shown in figure 2 Guangdong Dongdian Testing ServiceCo.,Ltd. Page 4 of 5 Figure 1 Test signal source Figure 2 Test signal source Guangdong Dongdian Testing ServiceCo.,Ltd. Page 5 of 5 3. Standards This antenna calibration is conducted according to KDB 865664 D01 4. Laboratory The following personnel participated in this laboratory: Table 1： Participate in the measurement laboratory Laboratory Name Temp°C Test person Guangdong Dongdian Testing Service Co., Ltd. 20.8°C Johnson Huang 5. Calibration Results The quality control test results are shown in Table 2 and Table 3, and the detailed test data is in the attachment Table 2 Calibrated Antenna Target Return loss Test Return loss Deviation Result 2450 -28.825 -28.394 1.50% OK 5200 -24.780 -20.041 19.12% OK 5300 -24.151 -27.179 12.54% OK 5500 -23.082 -25.183 9.10% OK 5600 -22.239 -23.471 5.54% OK Table 3 Calibrated Antenna Target Impedance （Real） Target Impedance （Imaginary Test Impedance （Real） Test Impedance （Imaginary） Deviation （Real） Deviation （Imaginary） Result 2450 53.391 1.586 50.607 2.878 2.784 1.292 OK 5200 49.477 -8.009 52.310 -8.448 2.833 0.439 OK 5300 54.645 -5.723 49.946 -3.293 4.699 2.43 OK 5500 56.887 -4.538 52.061 -5.591 4.826 1.053 OK 5600 56.214 -5.378 52.520 -4.505 3.694 0.873 OK

Guangdong Dongdian Testing Service Co., Ltd. Report No.:DDT-RE24052314-1E02 TRF No.: RT-4-E-02-001 RF test report Ver. 1.0 Page 1 of 126 FCC AND ISED CERTIFICATION 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 : BLUETOOTH HEADSET Model No. : TUNE FLEX 2 FCC ID : APITUNEFLEX2 IC : 6132A-TUNEFLEX2 Test Standard(s) : FCC Rules and Regulations Part 15 Subpart C, RSS-247 Issue 3 August 2023, ANSI C63.10:2013, RSS-Gen Issue 5, Apr. 2018, Amendment 2 (February 2021) Report No. : DDT-RE24052314-1E02 Issue Date : 2024/06/29 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-RE24052314-1E02 TRF No.: RT-4-E-02-001 RF test report Ver. 1.0 Page 2 of 126 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 ........................................................................................................... 19 5.1. Block diagram of test setup ........................................................................................ 19 5.2. Limits ........................................................................................................................... 19 5.3. Test procedure ............................................................................................................ 19 5.4. Test result ................................................................................................................... 20 5.5. Test graphs ................................................................................................................. 21 6. Maximum Peak Output Power .................................................................................... 25 6.1. Block diagram of test setup ........................................................................................ 25 6.2. Limits ........................................................................................................................... 25 6.3. Test procedure ............................................................................................................ 25 6.4. Test result ......................................................…

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