2AFZZM2319E1Wireless Earphones

Xiaomi Communications Co., Ltd. Federal Communications Commission 7435 Oakland Mills Road Columbia MD 21046 Subject: Certification designating a U.S. agent for service of process pursuant to Part 2.911(d)(7) To whom it may concern, Xiaomi Communications Co., Ltd./2AFZZ certifies that, as of the date of the filing of application, [Fortune Sky Inc] (“the agent”) is designated as the U.S. agent for the purpose of accepting service of process on behalf of the applicant. The physical U.S. address, email and FRN for the designated agent are: Physical U.S. address: [2691 Richter Ave Ste 118 Irvine, CA 92606] Email: [[email protected]] FRN: [0033406539] The applicant accepts to maintain an agent for service of process in the United States for no less than one year after either the grantee has permanently terminated all marketing and importation of the applicable equipment within the U.S., or the conclusion of any Commission-related administrative or judicial proceeding involving the equipment, whichever is later. The agent accepts the designation by (the applicant) as the U.S. agent to accept service of process includes, but is not limited to, delivery of any correspondence, notices, orders, decisions, and requirements of administrative, legal, or judicial process related to Commission proceedings. Signed by the Applicant （FRN:0024904948） Signed by the Agent (if different from the Applicant) Name: Qingyao Zeng Name: Peter Liang Title: N/A Title: CEO Email: [email protected] Email: [email protected] Date: December 12, 2023 Date: October 1, 2023

Xiaomi Communications Co., Ltd. Date: 03/06/2024 TO: Federal Communication Commission Equipment Authorization Branch 7435 Oakland Mills Road Columbia, MID 21046 Regarding: FCC ID: 2AFZZM2319E1 To whom it may concern: We, the undersigned, hereby authorize SGS-CSTC Standards Technical Services Co., Ltd. (SGS) to act on our behalf in all manners relating to application for equipment authorization with respect to the FCC ID above, including signing of all documents relating to these matters. Any and all acts carried out by the agent 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. 853(a). Where our 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 SGS North America, Inc., still resides with Xiaomi Communications Co., Ltd. This authorization is valid until further written notice from the applicant. Print Name: Zeng Qingyao Title: Certification Manager Signature: On behalf of Company: Xiaomi Communications Co., Ltd. Telephone: 010 6060 6666 E-mail: [email protected]

Xiaomi Communications Co., Ltd. Date: 03/06/2024 TO: Federal Communication Commission Equipment Authorization Branch 7435 Oakland Mills Road Columbia, MID 21046 From: Regarding: Confidentiality Request regarding application for FCC ID: 2AFZZM2319E1 LONG TERM CONFIDENTIALITY Pursuant to 47 CFR Section 0.459 and 0.457 of the commission’s rules, the applicant hereby requests confidential treatment of the documents listed below, associated with the certification application referenced above. Schematic(s) Block Diagrams Operational Descriptions The documents above contain proprietary information not released to the public. Public disclosure of this information may prove harmful to the business of the applicant. SHORT TERM CONFIDENTIALITY Additionally, the applicant requests the following documents be held confidential until the device is marketed or 180 days from the grant date, whichever is less. If the device is marketed within 180 days of the Grant Date, the applicant will notify the TCB per FCC KDB 726920 D01 Confidentiality Request Procedures. Delete any document that is NOT included in your application External Photos Internal Photos Test Setup Photos User manual(s) Print Name: Zeng Qingyao Title: Certification Manager Signature: On behalf of Company: Xiaomi Communications Co., Ltd. Telephone: 010 6060 6666 E-mail: [email protected] Tune up procedure

Label placement To Federal Communication Commission Equipment Authorization Branch 7 435 Oakland Mills Road Columbia, MID 21046 For the following product, Model Number: FCC ID: 2AFZZM2319E1 The FCC ID is not affixed on the product itself, but described in the product user manual and the product package/case due to below reasons. Reasons： The product is too small and has mesh on the body, making it impossible to label it.. The Size is below: 43.89 mm* 16.48 mm* 10 mm Print Name: Zeng Qingyao Title: Certification manager Signature: On behalf of Company: Xiaomi Communications Co., Ltd. Telephone: 010 6060 6666 E-mail: [email protected]

SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch SZSAR-TRF-01 Rev. A/0 May15,2023 Report No.: SZCR240200060104 Page: 1 of 37 Keny Xu EMC Laboratory Manager FCC SAR TEST REPORT Application No.: SZCR2402000601AT Applicant: Xiaomi Communications Co., Ltd. Address of Applicant: #019, 9th Floor, Building 6, 33 Xi'erqi Middle Road, Haidian District, Beijing, China, 100085 Manufacturer: Xiaomi Communications Co., Ltd. Address of Manufacturer: #019, 9th Floor, Building 6, 33 Xi'erqi Middle Road, Haidian District, Beijing, China, 100085 Product Name: Wireless Earphones Model No.(EUT): M2319E1 Trade Mark: Xiaomi FCC ID: 2AFZZM2319E1 Standard(s) : FCC 47CFR §2.1093 Date of Receipt: 2024-03-03 Date of Test: 2024-03-05 to 2024-03-06 Date of Issue: 2024-03-11 Test Result: Pass* * In the configuration tested, the EUT complied with the standards specified above. SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch SZSAR-TRF-01 Rev. A/0 May15,2023 Report No.: SZCR240200060104 Page: 2 of 37 Revision Record Version Description Date Remark 00 Original 2024-03-11 / Authorized for issue by: Roman Pan/ Project Engineer Eric Fu / Reviewer SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch SZSAR-TRF-01 Rev. A/0 May15,2023 Report No.: SZCR240200060104 Page: 3 of 37 TEST SUMMARY Test Summary Frequency Band Max Reported SAR1g(W/kg) Head BT 1.09 SAR Limited(W/kg) 1.6 SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch SZSAR-TRF-01 Rev. A/0 May15,2023 Report No.: SZCR240200060104 Page: 4 of 37 CONTENTS 1 GENERAL INFORMATION......................................................................................................................... 6 1.1 GENERAL DESCRIPTION OF EUT ............................................................................................................ 6 1.2 DUT ANTENNA LOCATIONS .................................................................................................................... 7 1.3 TEST SPECIFICATION............................................................................................................................. 8 1.4 RF EXPOSURE LIMITS ............................................................................................................................ 9 1.5 TEST LOCATION ...................................................................................................................................10 1.6 TEST FACILITY .....................................................................................................................................10 2 LABORATORY ENVIRONMENT ...............................................................................................................11 3 SAR MEASUREMENTS SYSTEM CONFIGURATION ...............................................................................12 3.1 THE SAR MEASUREMENT SYSTEM ........................................................................................................12 3.2 ISOTROPIC E-FIELD PROBE EX3DV4 .....................................................................................................14 3.3 DATA ACQUISITION ELECTRONICS (DAE) ...............................................................................................15 3.4 SAM TWIN PHANTOM ...........................................................................................................................15 3.5 ELI PHANTOM .....................................................................................................................................16 3.6 DEVICE HOLDER FOR TRANSMITTERS.....................................................................................................17 3.7 MEASUREMENT PROCEDURE .................................................................................................................18 3.7.1 Scanning procedure ......................................................................................................................18 3.7.2 Data Storage .................................................................................................................................20 3.7.3 Data Evaluation by SEMCAD ........................................................................................................20 4 SAR MEASUREMENT VARIABILITY AND UNCERTAINTY .....................................................................22 4.1 SAR MEASUREMENT VARIABILITY...........................................................................................................22 4.2 SAR MEASUREMENT UNCERTAINTY ........................................................................................................23 5 DESCRIPTION OF TEST POSITION .........................................................................................................24 5.1 THE TEST POSITION .............................................................................................................................24 6 SAR SYSTEM VERIFICATION PROCEDURE ...........................................................................................25 6.1 TISSUE SIMULATE LIQUID ......................................................................................................................25 6.1.1 Recipes for Tissue Simulate Liquid ................................................................................................25 6.1.2 Test Liquids Confirmation ..............................................................................................................26 6.1.3 Measurement for Tissue Simulate Liquid .......................................................................................27 6.2 SAR SYSTEM CHECK ...........................................................................................................................28 6.2.1 Justification for Extended SAR Dipole Calibrations ........................................................................29 6.2.2 Summary System Check Result(s) ......................…

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Kunshan Innowave Communication Technology Co., Ltd. No.1689,Zizhu Road, Yushan Town, Kunshan City,Jiangsu Province,China Product Specifications Antenna Name：N74A-Antenna Antenna Type：PIFA 1.1 behaviour of electricity 1.1-1 standard The N74A antenna resonates at 2400MHz-2480MHz. 1.1-2 Matching circuit of antenna. The matching circuit is designed to match the motherboard and antenna, so that the mobile phone can achieve the best RF performance in the working frequency band. Left&Right ear matching circuit 1.2 Test of Return loss ratio 1.2-1 Settings for testing Return loss The test device is connected in turn as follows: E5071B network analyzer →50 ohm coaxial Cable→35mm long copper tube → test fixture Treatment of test fixture: lead out the SMA-J connector from the antenna 50 ohm test point on the earphone PCB with a hard cable, connect it with the copper tube with choke coil, and then connect Kunshan Innowave Communication Technology Co., Ltd. No.1689,Zizhu Road, Yushan Town, Kunshan City,Jiangsu Province,China other devices in turn.。 1.2-2 Voltage return loss ratio measurement The following table shows the return loss values of the edge frequency points of the antenna working frequency band。 1.2-3 S11 Kunshan Innowave Communication Technology Co., Ltd. No.1689,Zizhu Road, Yushan Town, Kunshan City,Jiangsu Province,China Right FS Left FS Kunshan Innowave Communication Technology Co., Ltd. No.1689,Zizhu Road, Yushan Town, Kunshan City,Jiangsu Province,China Left EAR Right EAR Kunshan Innowave Communication Technology Co., Ltd. No.1689,Zizhu Road, Yushan Town, Kunshan City,Jiangsu Province,China 1.2-4 Left ear pattern Kunshan Innowave Communication Technology Co., Ltd. No.1689,Zizhu Road, Yushan Town, Kunshan City,Jiangsu Province,China 1.2-5 Right ear pattern Kunshan Innowave Communication Technology Co., Ltd. No.1689,Zizhu Road, Yushan Town, Kunshan City,Jiangsu Province,China 1.2-6 Left ear antenna size Front Back Kunshan Innowave Communication Technology Co., Ltd. No.1689,Zizhu Road, Yushan Town, Kunshan City,Jiangsu Province,China 1.2-6 Right ear antenna size Front Back

SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch SZEMC-TRF-01 Rev. A/1 Report No.: SZCR240200060103 Page: 1 of 156 Keny Xu EMC Laboratory Manager TEST REPORT Application No.: SZCR2402000601AT Applicant: Xiaomi Communications Co., Ltd. Address of Applicant: #019, 9th Floor, Building 6, 33 Xi'erqi Middle Road, Haidian District, Beijing, China, 100085 Manufacturer: Xiaomi Communications Co., Ltd. Address of Manufacturer: #019, 9th Floor, Building 6, 33 Xi'erqi Middle Road, Haidian District, Beijing, China, 100085 Equipment Under Test (EUT): EUT Name: Wireless Earphones Model No.: M2319E1 Trade Mark: Xiaomi FCC ID: 2AFZZM2319E1 Standard(s) : 47 CFR Part 15, Subpart C 15.247 Date of Receipt: 2024-02-23 Date of Test: 2024-02-28 to 2024-03-04 Date of Issue: 2024-03-11 Test Result: Pass* * In the configuration tested, the EUT complied with the standards specified above. SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch SZEMC-TRF-01 Rev. A/1 Report No.: SZCR240200060103 Page: 2 of 156 Revision Record Version Chapter Date Modifier Remark 01 2024-03-11 Original Authorized for issue by: Bill Chen/Project Engineer Eric Fu/Reviewer SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch SZEMC-TRF-01 Rev. A/1 Report No.: SZCR240200060103 Page: 3 of 156 2 Test Summary Radio Spectrum Technical Requirement Item Standard Method Requirement Result Antenna Requirement 47 CFR Part 15, Subpart C 15.247 N/A 47 CFR Part 15, Subpart C 15.203 & 15.247(b)(4) Pass Radio Spectrum Matter Part Item Standard Method Requirement Result Conducted Peak Output Power 47 CFR Part 15, Subpart C 15.247 ANSI C63.10 (2013) Section 11.9.1 47 CFR Part 15, Subpart C 15.247(b)(3) Pass Minimum 6dB Bandwidth ANSI C63.10 (2013) Section 11.8.1 47 CFR Part 15, Subpart C 15.247a(2) Pass Power Spectrum Density ANSI C63.10 (2013) Section 11.10.2 47 CFR Part 15, Subpart C 15.247(e) Pass Conducted Band Edges Measurement ANSI C63.10 (2013) Section 11.13.3.2 47 CFR Part 15, Subpart C 15.247(d) Pass Conducted Spurious Emissions ANSI C63.10 (2013) Section 11.11 47 CFR Part 15, Subpart C 15.247(d) Pass Radiated Emissions which fall in the restricted bands ANSI C63.10 (2013) Section 6.10.5 47 CFR Part 15, Subpart C 15.205 & 15.209 Pass Radiated Spurious Emissions Below 1GHz ANSI C63.10 (2013) Section 6.4,6.5 47 CFR Part 15, Subpart C 15.205 & 15.209 Pass Radiated Spurious Emissions Above 1GHz ANSI C63.10 (2013) Section 6.6 47 CFR Part 15, Subpart C 15.205 & 15.209 Pass SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch SZEMC-TRF-01 Rev. A/1 Report No.: SZCR240200060103 Page: 4 of 156 3 Contents Page 1 Cover Page ......................................................................................................................................... 1 2 Test Summary ..................................................................................................................................... 3 3 Contents ............................................................................................................................................. 4 4 General Information............................................................................................................................ 6 4.1 Details of E.U.T. ........................................................................................................................... 6 4.2 Description of Support Units ......................................................................................................... 7 4.3 Measurement Uncertainty ............................................................................................................ 7 4.4 Test Location ............................................................................................................................... 8 4.5 Test Facility .................................................................................................................................. 8 4.6 Deviation from Standards ............................................................................................................. 8 4.7 Abnormalities from Standard Conditions ....................................................................................... 8 5 Equipment List ................................................................................................................................... 9 6 Radio Spectrum Technical Requirement ..........................................................................................12 6.1 Antenna Requirement .................................................................................................................12 6.1.1 Test Requirement: ..................................................................................................................12 6.1.2 Conclusion ..............................................................................................................................12 7 Radio Spectrum Matter Test Results ................................................................................................13 7.1 Conducted Peak Output Power ...................................................................................................13 7.1.1 E.U.T. Operation .....................................................................................................................13 7.1.2 Test Mode Description ............................................................................................................13 7.1.3 Test Setup Diagram ................................................................................................................14 7.1.4 Measurement Procedure and Data .........................................................................................14 7.2 Minimum 6dB Bandwidth .............................................................................................................15 7.2.1 E.U.T. Operation ...................................................................…

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SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch SZEMC-TRF-01 Rev. A/1 Report No.: SZCR240200060103 Page: 138 of 156 1.1.2 Test Graph 2M_LCH_2404MHz_Ant1_NTNV 2M_MCH_2440MHz_Ant1_NTNV SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch SZEMC-TRF-01 Rev. A/1 Report No.: SZCR240200060103 Page: 139 of 156 2M_HCH_2478MHz_Ant1_NTNV SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch SZEMC-TRF-01 Rev. A/1 Report No.: SZCR240200060103 Page: 140 of 156 2. Bandwidth 2.1 OBW 2.1.1 Test Result Mode TX Type Frequency (MHz) ANT 99% Occupied Bandwidth (MHz) Verdict Result Limit 2M SISO 2404 1 2.039 / Pass 2440 1 2.038 / Pass 2478 1 2.037 / Pass SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch SZEMC-TRF-01 Rev. A/1 Report No.: SZCR240200060103 Page: 141 of 156 2.1.2 Test Graph 2M_LCH_2404MHz_Ant1_NTNV 2M_MCH_2440MHz_Ant1_NTNV SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch SZEMC-TRF-01 Rev. A/1 Report No.: SZCR240200060103 Page: 142 of 156 2M_HCH_2478MHz_Ant1_NTNV SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch SZEMC-TRF-01 Rev. A/1 Report No.: SZCR240200060103 Page: 143 of 156 2.2 6dB BW 2.2.1 Test Result Mode TX Type Frequency (MHz) ANT 6dB Bandwidth (MHz) Verdict Result Limit 2M SISO 2404 1 1.126 >=0.5 Pass 2440 1 1.126 >=0.5 Pass 2478 1 1.124 >=0.5 Pass SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch SZEMC-TRF-01 Rev. A/1 Report No.: SZCR240200060103 Page: 144 of 156 2.2.2 Test Graph 2M_LCH_2404MHz_Ant1_NTNV 2M_MCH_2440MHz_Ant1_NTNV SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch SZEMC-TRF-01 Rev. A/1 Report No.: SZCR240200060103 Page: 145 of 156 2M_HCH_2478MHz_Ant1_NTNV SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch SZEMC-TRF-01 Rev. A/1 Report No.: SZCR240200060103 Page: 146 of 156 3. Maximum Conducted Output Power 3.1 Power 3.1.1 Test Result Mode TX Type Frequency (MHz) Maximum Peak Conducted Output Power (dBm) Verdict ANT1 Limit 2M SISO 2404 7.81 <=30 Pass 2440 7.46 <=30 Pass 2478 6.94 <=30 Pass Note1: Antenna Gain: Ant1: -3.50dBi; SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch SZEMC-TRF-01 Rev. A/1 Report No.: SZCR240200060103 Page: 147 of 156 3.2 EIRP 3.2.1 Test Result Mode TX Type Frequency (MHz) E.I.R.P (dBm) Verdict ANT1 Limit 2M SISO 2404 4.31 <=36.02 Pass 2440 3.96 <=36.02 Pass 2478 3.44 <=36.02 Pass Note1: Antenna Gain: Ant1: -3.50dBi; Note2: E.I.R.P = Measured Power + Antenna Gain 4. Maximum Power Spectral Density 4.1 PSD 4.1.1 Test Result Mode TX Type Frequency (MHz) Maximum PSD (dBm/3kHz) Verdict ANT1 Limit 2M SISO 2404 -11.33 <=8 Pass 2440 -10.08 <=8 Pass 2478 -10.51 <=8 Pass Note1: Antenna Gain: Ant1: -3.50dBi; SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch SZEMC-TRF-01 Rev. A/1 Report No.: SZCR240200060103 Page: 148 of 156 4.1.2 Test Graph 2M_LCH_2404MHz_Ant1_NTNV 2M_MCH_2440MHz_Ant1_NTNV SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch SZEMC-TRF-01 Rev. A/1 Report No.: SZCR240200060103 Page: 149 of 156 2M_HCH_2478MHz_Ant1_NTNV SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch SZEMC-TRF-01 Rev. A/1 Report No.: SZCR240200060103 Page: 150 of 156 5. Unwanted Emissions In Non-restricted Frequency Bands 5.1 Ref 5.1.1 Test Result Mode TX Type Frequency (MHz) ANT Level of Reference (dBm) 2M SISO 2404 1 6.29 2440 1 7.66 2478 1 7.13 Note1: Refer to RSS-247 Issue 2 section 5.5 and ANSI C63.10-2013, the channel contains the maximum PSD level was used to establish the reference level. SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch SZEMC-TRF-01 Rev. A/1 Report No.: SZCR240200060103 Page: 151 of 156 5.1.2 Test Graph 2M_LCH_2404MHz_Ant1_NTNV 2M_MCH_2440MHz_Ant1_NTNV SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch SZEMC-TRF-01 Rev. A/1 Report No.: SZCR240200060103 Page: 152 of 156 2M_HCH_2478MHz_Ant1_NTNV SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch SZEMC-TRF-01 Rev. A/1 Report No.: SZCR240200060103 Page: 153 of 156 5.2 CSE 5.2.1 Test Result Mode TX Type Frequency (MHz) ANT Level of Reference (dBm) Limit (dBm) Verdict 2M SISO 2404 1 7.66 -12.34 Pass 2440 1 7.66 -12.34 Pass 2478 1 7.66 -12.34 Pass Note1: Refer to RSS-247 Issue 2 section 5.5 and ANSI C63.10-2013, the channel contains the maximum PSD level was used to establish the reference level. SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch SZEMC-TRF-01 Rev. A/1 Report No.: SZCR240200060103 Page: 154 of 156 5.2.2 Test Graph 2M_LCH_2404MHz_Ant1_NTNV 2M_LCH_2404MHz_Ant1_NTNV SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch SZEMC-TRF-01 Rev. A/1 Report No.: SZCR240200060103 Page: 155 of 156 2M_MCH_2440MHz_Ant1_NTNV 2M_HCH_2478MHz_Ant1_NTNV SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch SZEMC-TRF-01 Rev. A/1 Report No.: SZCR240200060103 Page: 156 of 156 2M_HCH_2478MHz_Ant1_NTNV - End of the Report -

Report No.: SZCR240200060104 Appendix A Detailed System Check Results 1. System Performance Check System Performance Check 2450 MHz Head Date: 2024/3/6 Test Laboratory: SGS-SAR Lab System Performance Check 2450MHz Head DUT: D2450V2; Type: Dipole; Serial: 733 Communication System: UID 0, CW; Frequency: 2450 MHz;Duty Cycle: 1:1 Medium: HSL2450;Medium parameters used: f = 2450 MHz; σ = 1.853 S/m; ε r = 37.977; ρ = 1000 kg/m 3 Phantom section: Flat Section DASY 5 Configuration: Probe: EX3DV4 - SN3789; ConvF(6.95, 6.95, 6.95); Calibrated: 2023/11/23 Sensor-Surface: 1.4mm (Mechanical Surface Detection) Electronics: DAE4 Sn634; Calibrated: 2024/2/22 Phantom: SAM 6; Type: SAM Twin; Serial: 1913 DASY52 52.10.4(1527); SEMCAD X 14.6.14(7483) Configuration/d=10mm, Pin=250mW/Area Scan (8x8x1): Measurement grid: dx=15mm, dy=15mm Maximum value of SAR (measured) = 22.6 W/kg Configuration/d=10mm, Pin=250mW/Zoom Scan (5x5x7)/Cube 0: Measurement grid: dx=8mm, dy=8mm, dz=5mm Reference Value = 19.09 V/m; Power Drift = 0.03 dB Peak SAR (extrapolated) = 28.8 W/kg SAR(1 g) = 14.1 W/kg; SAR(10 g) = 6.54 W/kg Maximum value of SAR (measured) = 23.3 W/kg 0 dB = 22.6 W/kg = 13.54 dBW/kg

Report No.: SZCR240200060104 Appendix B Detailed Test Results BT for Head Date: 2024/3/6 Test Laboratory: SGS-SAR Lab M2319E1 Bluetooth DH5 0CH Right Front side 0mm DUT: M2319E1; Type: Wireless Earphones Communication System: UID 0, Bluetooth (0); Frequency: 2402 MHz;Duty Cycle: 1:1 Medium: HSL2450;Medium parameters used: f = 2402 MHz; σ = 1.805 S/m; ε r = 38.139; ρ = 1000 kg/m 3 Phantom section: Flat Section DASY 5 Configuration: Probe: EX3DV4 - SN3789; ConvF(6.95, 6.95, 6.95); Calibrated: 2023/11/23 Sensor-Surface: 1.4mm (Mechanical Surface Detection) Electronics: DAE4 Sn634; Calibrated: 2024/2/22 Phantom: SAM 6; Type: SAM Twin; Serial: 1913 DASY52 52.10.4(1527); SEMCAD X 14.6.14(7483) Configuration/Body/Area Scan (6x6x1): Measurement grid: dx=12mm, dy=12mm Maximum value of SAR (measured) = 1.37 W/kg Configuration/Body/Zoom Scan (7x7x7)/Cube 0: Measurement grid: dx=5mm, dy=5mm, dz=5mm Reference Value = 17.41 V/m; Power Drift = -0.09 dB Peak SAR (extrapolated) = 2.78 W/kg SAR(1 g) = 0.681 W/kg; SAR(10 g) = 0.219 W/kg Maximum value of SAR (measured) = 1.65 W/kg 0 dB = 1.37 W/kg = 1.38 dBW/kg Date: 2024/3/6 Test Laboratory: SGS-SAR Lab M2319E1 Bluetooth DH5 39CH Left Front side 0mm DUT: M2319E1; Type: Wireless Earphones Communication System: UID 0, Bluetooth (0); Frequency: 2441 MHz;Duty Cycle: 1:1 Medium: HSL2450;Medium parameters used: f = 2441 MHz; σ = 1.846 S/m; ε r = 37.996; ρ = 1000 kg/m 3 Phantom section: Flat Section DASY 5 Configuration: Probe: EX3DV4 - SN3789; ConvF(6.95, 6.95, 6.95); Calibrated: 2023/11/23 Sensor-Surface: 1.4mm (Mechanical Surface Detection) Electronics: DAE4 Sn634; Calibrated: 2024/2/22 Phantom: SAM 6; Type: SAM Twin; Serial: 1913 DASY52 52.10.4(1527); SEMCAD X 14.6.14(7483) Configuration/Body/Area Scan (6x6x1): Measurement grid: dx=12mm, dy=12mm Maximum value of SAR (measured) = 0.757 W/kg Configuration/Body/Zoom Scan (7x7x7)/Cube 0: Measurement grid: dx=5mm, dy=5mm, dz=5mm Reference Value = 17.51 V/m; Power Drift = -0.07 dB Peak SAR (extrapolated) = 2.16 W/kg SAR(1 g) = 0.651 W/kg; SAR(10 g) = 0.196 W/kg Maximum value of SAR (measured) = 1.47 W/kg 0 dB = 0.757 W/kg = -1.21 dBW/kg

Report No.: SZCR240200060104 Appendix C Calibration certificate 1. Dipole D2450V2-SN 733 2. DAE DAE4-SN 634 3. Probe EX3DV4-SN 3789