ATI9R3103759Bluetooth Headphones

Action Electronics Co.,Ltd. Covered Equipment Certification Attestation Letter 2025-12-01 Nemko North America, Inc. 303 River Road Ottawa K1V 1H2 Canada ATTN.: Reviewing Engineer FCC ID:ATI9R3103759 Action Electronics Co.,Ltd. (“the applicant”) certifies that the equipment for which authorization is sought is not “covered” equipment prohibited from receiving an equipment authorization pursuant to section 2.903 of the FCC rules. Note: If the equipment for which the applicant seeks authorization is produced by any of the entities identified on the current Covered List, the applicant should include an explanation on why the equipment is not “covered” equipment. Action Electronics Co.,Ltd. (“the applicant”) certifies that, as of the date of the filing of the application, the applicant is not identified on the Covered List as an entity producing “covered” equipment. Action Electronics Co.,Ltd. (“the applicant”) certifies that the equipment for which authorization is sought does not include cybersecurity or anti-virus software produced or provided by Kaspersky Lab, Inc. or any of its successors and assignees, including equipment with integrated Kaspersky Lab, Inc. (or any of its successors and assignees) cybersecurity or anti-virus software pursuant to DA-24-886 and KDB 986446 D01 Covered Equipment Guidance section B(2a). Signed: Printed name: L.L TAN Title: Asst. Manager Company Name: Action Electronics Co.,Ltd. Address: 2480,TINGKAT PERUSAHAAN ENAM,PRAI FREE TRADE ZONE, 13600, PERAI,, Phone: 604-3997600 E-Mail: [email protected] Date: 2025-12-01

1/1 US Agent for Service of Process LETTER OF ATTESTATION TO: Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 US Agent for Service of Process: Company Name: VOXX INTERNATIONAL CORPORATION FRN: Contact Name:Joe Caltabiano Address:180 MARCUS BLVD., HAUPPAUGE, NEW YORK 11788 USA Telephone No:1-631-436-6521 Email:[email protected] Applicant: Company name: Action Electronics Co.,Ltd. Product Description: Bluetooth Headphones Grantee code: ATI FCC ID: ATI9R3103759 FRN：0012649703 Contact Name: L.L TAN Address: 2480,TINGKAT PERUSAHAAN ENAM,PRAI FREE TRADE ZONE, 13600, PERAI,, Telephone No: 604-3997600 Email: [email protected] Action Electronics Co.,Ltd. certifies that, as of the date of this filing of the application with the TCB, [VOXX INTERNATIONAL CORPORATION] is our designated US agent for service of process for the above referenced FCC ID. Action Electronics 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 equipment. [VOXX INTERNATIONAL CORPORATION] accepts, as of the date of the filing of the application, the obligation of the designated US agent for service of process for the above reference FCC ID. The US Agent for Service of Process is aware of and agrees to comply with the requirements outlined in the FCC Equipment Authorization Program, Report and Order FCC 22-84, and clause § 2.911. The Applicant is aware of and agrees to comply with the requirements outlined in the FCC Equipment Authorization Program, Report and Order FCC 22-84, and clause § 2.911. Date: 2025-12-01 Applicant’s Name: L.L TAN US Agent’s Name: Joe Caltabiano Title: Asst. Manager Title: Vice President Signature： Signature

Action Electronics Co.,Ltd. 2025-12-01 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: L.L TAN Title: Asst. Manager Company Name: Action Electronics Co.,Ltd. Address: 2480,TINGKAT PERUSAHAAN ENAM,PRAI FREE TRADE ZONE, 13600, PERAI,, Phone: 604-3997600 E-Mail: [email protected] Date: 2025-12-01

Action Electronics Co.,Ltd. 2025-12-01 Nemko North America, Inc. 303 River Road Ottawa, Ontario, Canada K1V 1H2 REQUEST FOR CONFIDENTIALITY – FCC FCC ID: ATI9R3103759 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: L.L TAN Title: Asst. Manager Company Name: Action Electronics Co.,Ltd. Address: 2480,TINGKAT PERUSAHAAN ENAM,PRAI FREE TRADE ZONE, 13600, PERAI,, Phone: 604-3997600 E-Mail: [email protected] Date: 2025-12-01

BLUETOOTH HEADPHONES (103759 rev 00) MODEL PLATE (P/N : 379732703G) SPECIFICATION 1. MATERIAL : 80G COATED PAPER 2. PRINTING : 1 COLOR (BLACK) 3. DIMENSIONS : 36x12 MM 4. POSITION : MODEL LABEL TO BE PLACED ON THE INSIDE OF THE LEFT HEADPHONE. 5. FINISHING : GLOSS LAMINATION WITH ADHESIVE Part No.: 103759 FCC ID: ATI9R3103759 IC: 34783-103759 Bluetooth Headphones 2351 J.Lawson Blvd, Orlando FL 32824 Technical Assistance: 1-800-225-6074

Guangdong Dongdian Testing Service Co., Ltd. Report No.:DDT-RE25090308-1E03 TRF No.: RT-4-E-006Page 1 of 6 RF EXPOSURE REPORT Applicant : Action Electronics Co.,Ltd. Address of Applicant : 2480,TINGKAT PERUSAHAAN ENAM,PRAI FREE TRADE ZONE, 13600, PERAI,, Manufacturer : ACTION INDUSTRIES (M) SDN.BHD. Address of Manufacturer : 2480, TINGKAT PERUSAHAAN ENAM, PRAI FREE TRADE ZONE, 13600, PERAI, PENANG, MALAYSIA Equipment under Test : Bluetooth Headphones Model No. : 103759 FCC ID : ATI9R3103759 Test Standard(s) : KDB447498 D01 General RF Exposure Guidance v06 Report No. : DDT-RE25090308-1E03 Issue Date : 2025/12/13 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-RE25090308-1E03 TRF No.: RT-4-E-006Page 2 of 6 Table of Contents 1.General Test Information..............................................................................................5 1.1.Description of EUT .......................................................................................................5 1.2.Accessories of EUT......................................................................................................5 1.3.Test laboratory .............................................................................................................5 2.RF Exposure evaluation for FCC .................................................................................6 2.1.Assessment procedure.................................................................................................6 2.2.Assess result ................................................................................................................6 Guangdong Dongdian Testing Service Co., Ltd. Report No.:DDT-RE25090308-1E03 TRF:RT-4-E-006Page 3 of 6 $!CeMetaLims!digital$ Test Report Declare Applicant : Action Electronics Co.,Ltd. Address of Applicant : 2480,TINGKAT PERUSAHAAN ENAM,PRAI FREE TRADE ZONE, 13600, PERAI,, Equipment under Test : Bluetooth Headphones Model No. : 103759 Manufacturer : ACTION INDUSTRIES (M) SDN.BHD. Address of Manufacturer : 2480, TINGKAT PERUSAHAAN ENAM, PRAI FREE TRADE ZONE, 13600, PERAI, PENANG, MALAYSIA Test Standard Used: KDB447498 D01 General RF Exposure Guidance v06 We Declare: The equipment described above is tested by Guangdong Dongdian Testing Service Co., Ltd. and in the configuration tested the equipment complied with the standards specified above. The test results are contained in this test report and Guangdong Dongdian Testing Service Co., Ltd. is assumed of full responsibility for the accuracy and completeness of these tests. Report No.:DDT-RE25090308-1E03 Date of Receipt:2025/09/05Date of Test:2025/09/05~2025/10/24 Note: This report applies to above tested sample only. This report shall not be reproduced in parts without written approval of Guangdong Dongdian Testing Service Co., Ltd. Created: Zoe PengReviewed: Chen Ziqin Approved: Damon Hu 2025/10/242025/12/132025/12/13 Guangdong Dongdian Testing Service Co., Ltd. Report No.:DDT-RE25090308-1E03 TRF:RT-4-E-006Page 4 of 6 Revision History VersionRevision ContentIssue DateApproved V0Initial issue2025/12/13Damon Hu Guangdong Dongdian Testing Service Co., Ltd. Report No.:DDT-RE25090308-1E03 TRF:RT-4-E-006Page 5 of 6 1. General Test Information 1.1. Description of EUT EUT Name:Bluetooth Headphones Model Number:103759 Difference of model number ： / EUT Function Description:Please reference user manual of this device Power Supply:AAA Batteries 1.5V * 2 Hardware Version:/ Software Version:/ Note: The above EUT information is declared by manufacturer and for more detailed features description please refer to the manufacturer's specifications or User's Manual. 1.2. Accessories of EUT AccessoriesManufacturerModel numberDescription //// 1.3. Test laboratory Guangdong Dongdian Testing Service Co., Ltd. Add.: Unit 2, Building 1, No. 17, Zongbu 2nd Road, Songshan Lake Park, Dongguan, Guangdong, China, 523808. Tel.: +86-0769-38826678, http://www.dgddt.com, Email: [email protected]. CNAS Accreditation No. L6451; A2LA Accreditation Number: 3870.01 FCC Designation Number: CN1182, Test Firm Registration Number: 540522 Innovation, Science and Economic Development Canada Site Registration Number: 10288A Conformity Assessment Body identifier: CN0048 VCCI facility registration number: C-20087, T-20088, R-20123, R-20240, G-20118 Guangdong Dongdian Testing Service Co., Ltd. Report No.:DDT-RE25090308-1E03 TRF:RT-4-E-006Page 6 of 6 2. RF Exposure evaluation for FCC 2.1. Assessment procedure According to 447498 D01 General RF Exposure Guidance v06 The 1-g and 10-g SAR test exclusion thresholds for 100 MHz to 6 GHz at test separation distances ≤ 50 mm are determined by: [(max. power of channel, including tune-up tolerance, mW)/(min. test separation distance, mm)] ·[√f(GHz)] ≤ 3.0 for 1-g SAR and ≤ 7.5 for 10-g extremity SAR, where: f(GHz) is the RF channel transmit frequency in GHz Power and distance are rounded to the nearest mW and mm before calculation The result is rounded to one decimal place for comparison 2.2. Assess result Manufacturing Tolerance: Bluetooth: ModeAntenna Frequency [MHz] Target (dBm)Tolerance ±(dB) 2402-7.01 2441-5.51 GFSK (Peak)Ant1 2480-6.51 2402-6.51 2441-5.01 π/4DQPSK (Peak)Ant1 2480-6.01 2402-6.01 2441-4.51 8DPSK (Peak)Ant1 2480-5.51 Bluetooth LE: ModeAntenna Frequency [MHz] Target (dBm)Tolerance ±(dB) 2402-3.51 2440-1.01 Bluetooth LE 1M (Peak) Ant1 2480-1.51 2404-3.51 2440-1.01 Bluetooth LE 2M (Peak) Ant1 2478-1.51 Estimtion Result: Worse case is as below: [2440 MHz, -1 dBm, (0.794 mW) output power] (0.794/5) ·[√2.440(GHz)] = 0.248< 3.0 for 1-g SAR Then SAR evaluation is not required. -----------------------End Report----------------------

COSMOSICSEMICONDUCTOR 2.4G-2.48GFrequencyBand,On-BoardPIFAAntennaTestReport SPECIFICATIONS Frequency（MHz） 2400-2480 PeakGain（dBi） 1.688 AverageGain（dBi）＞-4 VSWR ＜3.2 Impedance（Ω） 50Ω AntennaTypePlannarInvertedFAntennaonboard PolarizationLinear TestEnvironment:DarkroomTestingSystem(HuaxiaInspection) COSMOSICSEMICONDUCTORLIMITED Addr.:2F,BuildingA1,JunfengIndustrialZone, HepingVillage,FuyongTown,Bao'anDistrict, Shenzhen,China ApprovedCheckedFinished Andy 2023/03/25 Jon 2023/03/25 Tom 2023/03/25 Model：Unit： PAGE: 1/6 COSMOSICSEMICONDUCTOR PhysicalandDimensionalDiagramofBluetoothPCBAntenna(MODEL:ANT-BT) Physicaldimensiondiagram COSMOSICSEMICONDUCTORLIMITED Addr.:2F,BuildingA1,JunfengIndustrialZone,Heping Village,FuyongTown,Bao'anDistrict,Shenzhen,China ApprovedChecked Finished Andy 2023/03/25 Jon 2023/03/25 Tom 2023/03/25 Model：Unit： PAGE: 1/6 COSMOSICSEMICONDUCTOR PassiveS-parametersofantenna:StandingWaveRatio(VSWR),ReturnLoss,and SmithChart Antennaefficiencyandgain Frequency （MHz） Gain （dBi） Effciency （%） AverageGain （dBi） Efficiency （dB） 24 00 1.43359.329%- 2.71 7 - 2.26 7 24 10 0.29751.861%- 2.41 6 - 2.85 2 24 20 0.82952.112%- 2.16 6 - 2.83 1 24 30 0.88149.299%- 2.25 8 - 2.07 2 24 40 1.19250.627%- 2.14 4 - 2.95 2 24 50 1.68853.067%- 2.73 5 - 2.75 2 24 60 1.19459.423%- 2.27 6 - 2.26 0 24 70 1.11856.680%- 2.43 8 - 2.46 6 24 80 1.49961.727%- 2.11 2 - 2.09 5 Average1.52954.908%- 2.80 6 - 2.61 6 Pe ak 1.68861.727%- 2.11 2 - 2.09 5 COSMOSICSEMICONDUCTORLIMITED Addr.:2F,BuildingA1,JunfengIndustrialZone,Heping Village,FuyongTown,Bao'anDistrict,Shenzhen,China ApprovedChecked Finished Andy 2023/03/25 Jon 2023/03/25 Tom 2023/03/25 Model：Unit： PAGE: 3/6 COSMOSICSEMICONDUCTOR Antenna2440MHz2D-ThetaPattern Antenna2440MHz2D-PhiPattern COSMOSICSEMICONDUCTORLIMITED Addr.:2F,BuildingA1,JunfengIndustrialZone,Heping Village,FuyongTown,Bao'anDistrict,Shenzhen,China ApprovedChecked Finished Andy 2023/03/25 Jon 2023/03/25 Tom 2023/03/25 Model：Unit： PAGE: 4/6 COSMOSICSEMICONDUCTOR Antenna2440MHz3D-HorizontalPattern Antenna2440MHz3D-VerticalPattern COSMOSICSEMICONDUCTORLIMITED Addr.:2F,BuildingA1,JunfengIndustrialZone,Heping Village,FuyongTown,Bao'anDistrict,Shenzhen,China ApprovedChecked Finished Andy 2023/03/25 Jon 2023/03/25 Tom 2023/03/25 Model：Unit： PAGE: 5/6 COSMOSICSEMICONDUCTOR Antenna2440MHz3D-TotalPattern COSMOSICSEMICONDUCTORLIMITED Addr.:2F,BuildingA1,JunfengIndustrialZone,Heping Village,FuyongTown,Bao'anDistrict,Shenzhen,China ApprovedChecked Finished Andy 2023/03/25 Jon 2023/03/25 Tom 2023/03/25 Model：Unit： PAGE: 6/6

Guangdong Dongdian Testing Service Co., Ltd. Report No.:DDT-RE25090308-1E01 TRF: RT-4-E-005Page 1 of 106 RADIO TEST REPORT Applicant : Action Electronics Co.,Ltd. Address of Applicant : 2480,TINGKAT PERUSAHAAN ENAM,PRAI FREE TRADE ZONE, 13600, PERAI,, Manufacturer : ACTION INDUSTRIES (M) SDN.BHD. Address of Manufacturer : 2480, TINGKAT PERUSAHAAN ENAM, PRAI FREE TRADE ZONE, 13600, PERAI, PENANG, MALAYSIA Equipment under Test : Bluetooth Headphones Model No. : 103759 FCC ID : ATI9R3103759 Test Standard(s) : FCC Rules and Regulations Part 15 Subpart C, ANSI C63.10-2020, Report No. : DDT-RE25090308-1E01 Issue Date : 2025/12/23 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-RE25090308-1E01 TRF: RT-4-E-005Page 2 of 106 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 ...........................................................................................................11 2.8.Measurement uncertainty...........................................................................................12 3.Equipment Used During Conductive Test ..................................................................13 4.20 dB Bandwidth ........................................................................................................14 4.1.Block diagram of test setup ........................................................................................14 4.2.Limits ..........................................................................................................................14 4.3.Test procedure ...........................................................................................................14 4.4.Test result...................................................................................................................15 4.5.Test graphs ................................................................................................................16 5.99% Bandwidth ..........................................................................................................20 5.1.Block diagram of test setup ........................................................................................20 5.2.Limits ..........................................................................................................................20 5.3.Test procedure ...........................................................................................................20 5.4.Test result...................................................................................................................21 5.5.Test graphs ................................................................................................................22 6.Maximum Peak Output Power....................................................................................26 6.1.Block diagram of test setup ........................................................................................26 6.2.Limits ..........................................................................................................................26 6.3.Test procedure ...........................................................................................................26 6.4.Test result...................................................................................................................27 6.5.Test graphs ................................................................................................................28 7.Carrier Frequency Separation ....................................................................................32 7.1.Block diagram of test setup ........................................................................................32 7.2.Limits ..........................................................................................................................32 7.3.Test procedure ...........................................................................................................32 7.4.Test result...................................................................................................................33 7.5.Test graphs ................................................................................................................34 8.Dwell Time..................................................................................................................36 Guangdong Dongdian Testing Service Co., Ltd. Report No.:DDT-RE25090308-1E01 TRF: RT-4-E-005Page 3 of 106 8.1.Block diagram of test setup ........................................................................................36 8.2.Limits ..........................................................................................................................36 8.3.Test procedure ...........................................................................................................36 8.4.Test result......................…

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Guangdong Dongdian Testing Service Co., Ltd. Report No.:DDT-RE25090308-1E01 TRF:RT-4-E-005Page 51 of 106 DH5_Ant1_High_Hop_2480 2DH5_Ant1_Low_2402 2DH5_Ant1_High_2480 A Att30dB * Offset10.2dB LVL Ref20dBm Start2.31GHzStop2.41GHz10MHz/ 3DB RBW100kHz SWT10ms * VBW300kHz * 1PK VIEW -80 -70 -60 -50 -40 -30 -20 -10 0 10 20 1 Marker1[T1] -9.62dBm 2.407916667GHz 2 Marker2[T1] -43.30dBm 2.400000000GHz 3 Marker3[T1] -48.60dBm 2.390000000GHz 4 Marker4[T1] -43.05dBm 2.399102564GHz D1-29.62dBm Date: 10.OCT.2025 14:47:48 A Att30dB * Offset10.4dB LVL Ref20dBm Start2.47GHzStop2.5GHz3MHz/ 3DB RBW100kHz SWT15ms * VBW300kHz * 1PK VIEW -80 -70 -60 -50 -40 -30 -20 -10 0 10 20 1 Marker1[T1] -7.67dBm 2.474134615GHz 2 Marker2[T1] -47.49dBm 2.483500000GHz 3 Marker3[T1] -47.55dBm 2.500000000GHz 4 Marker4[T1] -45.29dBm 2.488461538GHz D1-27.67dBm Date: 10.OCT.2025 14:49:11 A Att30dB * Offset10.2dB LVL Ref20dBm Start2.31GHzStop2.41GHz10MHz/ 3DB RBW100kHz SWT10ms * VBW300kHz * 1PK VIEW -80 -70 -60 -50 -40 -30 -20 -10 0 10 20 1 Marker1[T1] -9.20dBm 2.401987179GHz 2 Marker2[T1] -48.16dBm 2.400000000GHz 3 Marker3[T1] -49.39dBm 2.390000000GHz 4 Marker4[T1] -44.12dBm 2.398942308GHz D1-29.2dBm Date: 10.OCT.2025 09:43:21 Guangdong Dongdian Testing Service Co., Ltd. Report No.:DDT-RE25090308-1E01 TRF:RT-4-E-005Page 52 of 106 2DH5_Ant1_Low_Hop_2402 2DH5_Ant1_High_Hop_2480 3DH5_Ant1_Low_2402 A Att30dB * Offset10.5dB LVL Ref20dBm Start2.47GHzStop2.5GHz3MHz/ 3DB RBW100kHz SWT15ms * VBW300kHz * 1PK VIEW -80 -70 -60 -50 -40 -30 -20 -10 0 10 20 1 Marker1[T1] -8.35dBm 2.480144231GHz 2 Marker2[T1] -48.39dBm 2.483500000GHz 3 Marker3[T1] -47.90dBm 2.500000000GHz 4 Marker4[T1] -46.00dBm 2.487692308GHz D1-28.35dBm Date: 10.OCT.2025 09:46:37 A Att30dB * Offset10.2dB LVL Ref20dBm Start2.31GHzStop2.41GHz10MHz/ 3DB RBW100kHz SWT10ms * VBW300kHz * 1PK VIEW -80 -70 -60 -50 -40 -30 -20 -10 0 10 20 1 Marker1[T1] -10.71dBm 2.410000000GHz 2 Marker2[T1] -48.79dBm 2.400000000GHz 3 Marker3[T1] -48.24dBm 2.390000000GHz 4 Marker4[T1] -46.25dBm 2.396538462GHz D1-30.71dBm Date: 10.OCT.2025 13:53:54 A Att30dB * Offset10.4dB LVL Ref20dBm Start2.47GHzStop2.5GHz3MHz/ 3DB RBW100kHz SWT15ms * VBW300kHz * 1PK VIEW -80 -70 -60 -50 -40 -30 -20 -10 0 10 20 1 Marker1[T1] -9.59dBm 2.472980769GHz 2 Marker2[T1] -46.74dBm 2.483500000GHz 3 Marker3[T1] -47.65dBm 2.500000000GHz 4 Marker4[T1] -45.35dBm 2.490048077GHz D1-29.59dBm Date: 10.OCT.2025 13:55:48 Guangdong Dongdian Testing Service Co., Ltd. Report No.:DDT-RE25090308-1E01 TRF:RT-4-E-005Page 53 of 106 3DH5_Ant1_High_2480 3DH5_Ant1_Low_Hop_2402 3DH5_Ant1_High_Hop_2480 A Att30dB * Offset10.2dB LVL Ref20dBm Start2.31GHzStop2.41GHz10MHz/ 3DB RBW100kHz SWT10ms * VBW300kHz * 1PK VIEW -80 -70 -60 -50 -40 -30 -20 -10 0 10 20 1 Marker1[T1] -8.81dBm 2.401826923GHz 2 Marker2[T1] -48.96dBm 2.400000000GHz 3 Marker3[T1] -47.16dBm 2.390000000GHz 4 Marker4[T1] -42.25dBm 2.399102564GHz D1-28.81dBm Date: 10.OCT.2025 09:48:35 A Att30dB * Offset10.5dB LVL Ref20dBm Start2.47GHzStop2.5GHz3MHz/ 3DB RBW100kHz SWT15ms * VBW300kHz * 1PK VIEW -80 -70 -60 -50 -40 -30 -20 -10 0 10 20 1 Marker1[T1] -8.30dBm 2.479807692GHz 2 Marker2[T1] -48.42dBm 2.483500000GHz 3 Marker3[T1] -47.89dBm 2.500000000GHz 4 Marker4[T1] -45.86dBm 2.497451923GHz D1-28.3dBm Date: 10.OCT.2025 09:52:53 A Att30dB * Offset10.2dB LVL Ref20dBm Start2.31GHzStop2.41GHz10MHz/ 3DB RBW100kHz SWT10ms * VBW300kHz * 1PK VIEW -80 -70 -60 -50 -40 -30 -20 -10 0 10 20 1 Marker1[T1] -10.34dBm 2.406153846GHz 2 Marker2[T1] -45.12dBm 2.400000000GHz 3 Marker3[T1] -48.80dBm 2.390000000GHz 4 Marker4[T1] -46.81dBm 2.393653846GHz D1-30.34dBm Date: 10.OCT.2025 13:56:09 Guangdong Dongdian Testing Service Co., Ltd. Report No.:DDT-RE25090308-1E01 TRF:RT-4-E-005Page 54 of 106 A Att30dB * Offset10.4dB LVL Ref20dBm Start2.47GHzStop2.5GHz3MHz/ 3DB RBW100kHz SWT15ms * VBW300kHz * 1PK VIEW -80 -70 -60 -50 -40 -30 -20 -10 0 10 20 1 Marker1[T1] -9.33dBm 2.471778846GHz 2 Marker2[T1] -47.33dBm 2.483500000GHz 3 Marker3[T1] -47.38dBm 2.500000000GHz 4 Marker4[T1] -44.97dBm 2.487932692GHz D1-29.33dBm Date: 10.OCT.2025 13:57:21 Guangdong Dongdian Testing Service Co., Ltd. Report No.:DDT-RE25090308-1E01 TRF:RT-4-E-005Page 55 of 106 11. RF Conducted Spurious Emissions 11.1. Block diagram of test setup 11.2. Limits In any 100 kHz bandwidth outside the frequency bands in which the spread spectrum intentional radiator in operating, the radio frequency power that is produced by the intentional radiator shall be at least 20 dB below that in the 100 kHz bandwidth within the band that contains the highest level of the desired power. 11.3. Test procedure (1) Connect EUT’s antenna output to spectrum analyzer by RF cable. (2) Establish a reference level by using the following procedure: Center frequencyTest frequency RBW:100 kHz VBW:300 kHz Span Wide enough to capture the peak level of the in- band emission Detector Mode:Peak Sweep time:Auto Trace modeMax hold (3) Allow the trace to stabilize, use the peak marker function to determine the maximum peak power level to establish the reference level. (4) Set the spectrum analyzer as follows: RBW:100 kHz VBW:300 kHz SpanEncompass frequency range to be measured Number of measurement points ≥Span/RBW Detector Mode:Peak Sweep time:Auto Trace modeMax hold Allow the trace to stabilize, use the peak marker function to determine the maximum amplitude of all unwanted emissions outside of the authorized frequency band Appendix H: Conducted Spurious Emission 11.4. Test result Test Engineer:Wayne HuangTest Site:RF Measurement system 1# Ambient Condition: 24.5°C,44.7%RH Test Date:2025.10.10 Test Power BatterySample Number:S25090308-006 Guangdong Dongdian Testing Service Co., Ltd. Report No.:DDT-RE25090308-1E01 TRF:RT-4-E-005Page 56 of 106 Supply: ModeFreq. (MHz)Verdict Hopping off 2402Pass Hopping off 2441Pass GFSK Hopping off 2480Pass Hopping off 2402Pass Hopping off 2441Pass π/4-DQPSK Hopping off 2480Pass Hopping off 2402Pass Hopping off 2441Pass 8DPSK Hopping off 2480Pass Guangdong Dongdian …

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