2AZEQ-B163Wireless Earphone

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Applicant Declaration QSF27-14-04 Rev 1.0 Rev. Feb 6, 2023 Page 1 of 1 Original Issue: Jan. 4, 2021 SGS North America Inc. 620 Old Peachtree Road SUITE 100 Suwanee, Georgia 30024 United States Applicant Legal Business Name NOTHING TECHNOLOGY LIMITED Address 80 Cheapside, London, England EC2V 6EE Grantee Code 2AZEQ FCC ID 2AZEQ-B163 Authorized Contact Name Jathan Liu Contact Email [email protected] Contact Phone 8618938035041 I, the undersigned, certify that I am an authorized signatory for the Applicant and therefore declare; a) in accordance with 47CFR2.911(d), all of the statements herein and the exhibits attached hereto are true and correct to the best of my knowledge and belief. b) in accepting a Grant of Equipment Authorization issued by a TCB, under the authority of the FCC, as a result of the representations made in this application, the Applicant is responsible for: (1) labeling the equipment with the exact FCC ID as specified in this application, (2) compliance statement labeling pursuant to the applicable rules, (3) compliance of the equipment with the applicable technical rules, c) if the Applicant is not the actual manufacturer of the equipment, appropriate arrangements have been made with the manufacturer to ensure that production units of this equipment will continue to comply with the FCC’s technical requirements. d) in accordance with 47 CFR 2.909 and KDB394321, the Applicant has read, understood and agrees to accept that they are the responsible party and agree to abide by their responsibilities as specified under 47 CFR 2.909 and KDB394321. e) in accordance with ISO 17065, FCC KDB641163, FCC KDB610077, KDB394321 and RSP-100, the Applicant has read, understood, accepts and agrees to abide by the post market surveillance requirements. (1) the Applicant understands, accepts and agrees that a sample may be requested for surveillance testing. (2) the Applicant shall make provisions to always have a production sample available upon request by SGS, FCC and/or ISED. (3) the Applicant shall, upon request by SGS, at the Applicant’s expense, provide a production sample of the requested product to SGS, FCC and/or ISED as instructed. The sample shall include all support devices, cables, software, accessories or other hardware or software required for evaluation, review, certification and audit surveillance of products certified by SGS. f) neither the Applicant nor any party to the application is subject to a denial of Federal benefits, that includes FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C. §862 because of a conviction for possession or distribution of a controlled substance. See 47CFR 1.2002(b) for the definition of a “party” for these purposes. g) the Applicant has read, understood, accepts and agrees to abide by the SGS North America, Inc.(TCB) terms and conditions. Link to CFRs: https://www.fcc.gov/wireless/bureau-divisions/technologies-systems-and-innovation-division/rules-regulations-title-47 Link to KDBs: https://apps.fcc.gov/oetcf/kdb/index.cfm Link to RSP-100: https://www.ic.gc.ca/eic/site/smt-gst.nsf/eng/sf01130.html Link to the Covered List: Covered List [NOTHING TECHNOLOGY LIMITED] (“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. [NOTHING TECHNOLOGY LIMITED] (“the applicant”) certifies that, as of the date of the filing of the application, the applicant [is not] identified on the Covered list, established pursuant to §1.50002, as an entity producing “covered” equipment. Applicant Signature: Date: 08/10/2023 Print Name: Jathan Liu Title: Regulatory Manager *NOTE: This declaration cannot be signed by an Agent, it shall be signed by an authorized person listed in the FCC database

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, NOTHING TECHNOLOGY LIMITED and Grantee Code:2AZEQ(“the applicant”) certifies that, as of the date of the filing of application, WAGMI Amercia,Corp and FRN: 0033426651(“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 and email for the designated agent are: Physical U.S. address: 19901, Kent, Dover, 108 Lakeland Avenue, Delaware, USA Email: [email protected] 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 Signed by the Agent (if different from the Applicant) Name: Jathan Liu Name: Robert Garcia Title: Certification Manager Title: Sales Manager Email: [email protected] Email: [email protected] Date: 22/02/2023 Date:22/02/2023

NOTHING TECHNOLOGY LIMITED Date: 08/10/2023 TO: Federal Communication Commission Equipment Authorization Branch 7435 Oakland Mills Road Columbia, MID 21046 Regarding: FCC ID: 2AZEQ-B163 To whom it may concern: We, the undersigned, hereby authorize SGS-CSTC Standards Technical Services Co., Ltd 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 NOTHING TECHNOLOGY LIMITED This authorization is valid until further written notice from the applicant. Sincerely, Print Name: Jathan Liu Title: Regulatory Manager Signature: . On behalf of Company: NOTHING TECHNOLOGY LIMITED E-mail: [email protected]

NOTHING TECHNOLOGY LIMITED To: Federal Communication Commission Equipment Authorization Branch 7435 Oakland Mills Road Columbia, MID 21046 Regarding: Confidentiality Request regarding application for FCC ID: 2AZEQ-B163 LONG TERM CONFIDENTIALITY Pursuant to 47 CFR Section 0.459 and 0.457 of the commission’s rules, the applicant hereby request confidential treatment of the documents listed below, associated with the certification application referenced above. Schematic(s) Block Diagrams Operational Descriptions Tune Up Procedure 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 aforementioned days of the Grant Date, the applicant will notify the TCB per FCC KDB 726920 D01 Confidentiality Request Procedures. External Photos Internal Photos Test Setup Photos User manual(s) Sincerely, Print Name: Jathan Liu Title: Regulatory Manager Signature: . On behalf of Company: NOTHING TECHNOLOGY LIMITED E-mail: [email protected]

SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch SZEMC-TRF-A02 Rev.A/0 Page: 1 of 6 Appendix External Photos for SZCR2306001971AT FCC ID:2AZEQ-B163 SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch SZEMC-TRF-A02 Rev.A/0 Page: 2 of 6 EUT Constructional Details (EUT Photos) SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch SZEMC-TRF-A02 Rev.A/0 Page: 3 of 6 SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch SZEMC-TRF-A02 Rev.A/0 Page: 4 of 6 SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch SZEMC-TRF-A02 Rev.A/0 Page: 5 of 6 SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch SZEMC-TRF-A02 Rev.A/0 Page: 6 of 6 - End of the Appendix -

NOTHING TECHNOLOGY LIMITED Label placement To Federal Communication Commission Equipment Authorization Branch 7 435 Oakland Mills Road Columbia, MID 21046 For the following product, Product Name: Wireless Earphone Model Name/Number: B163 FCC ID: 2AZEQ-B163 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 to put the label on it. The Size is below: 21.8 mm* 31.6 mm* 8.6 mm Print Name: Jathan Liu Title: Regulatory Manager Signature: . On behalf of Company: NOTHING TECHNOLOGY LIMITED E-mail: [email protected]

SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch SZEMC-TRF-A03 Rev.A/0 Page: 1 of 8 Appendix Internal Photos for SZCR2306001971AT FCC ID:2AZEQ-B163 SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch SZEMC-TRF-A03 Rev.A/0 Page: 2 of 8 EUT Constructional Details (EUT Photos) Left earbuds antenna Right earbuds antenna SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch SZEMC-TRF-A03 Rev.A/0 Page: 3 of 8 SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch SZEMC-TRF-A03 Rev.A/0 Page: 4 of 8 SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch SZEMC-TRF-A03 Rev.A/0 Page: 5 of 8 SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch SZEMC-TRF-A03 Rev.A/0 Page: 6 of 8 SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch SZEMC-TRF-A03 Rev.A/0 Page: 7 of 8 SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch SZEMC-TRF-A03 Rev.A/0 Page: 8 of 8 - End of the Appendix -

Doc No./Rev.: SGS-W-TRF-101 v00 SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Report No.: ZEWM2307000941RG01 Page : 1 of 34 Authorized Signature: Ervin Li Regulatory Manager FCC SAR TEST REPORT Application No.: ZEWM2307000941RG Applicant: NOTHING TECHNOLOGY LIMITED Manufacturer: NOTHING TECHNOLOGY LIMITED Product Name: Wireless Earphone Model No.(EUT): B163 Trade Mark: cmf by NOTHING FCC ID: 2AZEQ-B163 Standards: FCC 47CFR §2.1093 Date of Receipt: 2023/07/07 Date of Test: 2023/07/13 Date of Issue: 2023/07/14 Test conclusion: PASS * * In the configuration tested, the EUT detailed in this report complied with the standards specified above. Doc No./Rev.: SGS-W-TRF-101 v00 SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Report No.: ZEWM2307000941RG01 Page : 2 of 34 REVISION HISTORY Report Number Revision Description Issue Date ZEWM2307000941RG01 01 Original 2023/07/14 Prepared By Vito Wang Checked By Roman Pan Doc No./Rev.: SGS-W-TRF-101 v00 SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Report No.: ZEWM2307000941RG01 Page : 3 of 34 TEST SUMMARY Frequency Band Maximum Reported SAR(W/kg) BT 0.95 SAR Limited(W/kg) 1.6 Doc No./Rev.: SGS-W-TRF-101 v00 SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Report No.: ZEWM2307000941RG01 Page : 4 of 34 CONTENTS 1 GENERAL INFORMATION .................................................................................................................................... 6 1.1 DETAILS OF CLIENT ................................................................................................................................................. 6 1.2 TEST LOCATION ...................................................................................................................................................... 6 1.3 TEST FACILITY ......................................................................................................................................................... 7 1.4 GENERAL DESCRIPTION OF EUT ............................................................................................................................ 8 1.4.1 DUT Antenna Locations .................................................................................................................................. 9 1.5 TEST SPECIFICATION ............................................................................................................................................ 10 1.6 RF EXPOSURE LIMITS ............................................................................................................................................ 11 2 LABORATORY ENVIRONMENT ........................................................................................................................ 12 3 SAR MEASUREMENTS SYSTEM CONFIGURATION ...................................................................................... 13 3.1 THE SAR MEASUREMENT SYSTEM ...................................................................................................................... 13 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 ..................................................................................................................... 22 5 DESCRIPTION OF TEST POSITION ................................................................................................................... 23 5.1 HEAD EXPOSURE CONDITION ............................................................................................................................... 23 6 SAR SYSTEM VERIFICATION PROCEDURE ................................................................................................... 24 6.1 TISSUE SIMULATE LIQUID ..................................................................................................................................... 24 6.1.1 Recipes for Tissue Simulate Liquid ............................................................................................................. 24 6.1.2 Measurement for Tissue Simulate Liquid ................................................................................................... 25 6.2 SAR SYSTEM CHECK .......................................................................................................…

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Report No.: ZEWM2307000941RG01 Appendix A Detailed System Check Results 1.System Performance Check System Performance Check 2450 MHz Head Date: 2023/7/13 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 = 1.74 S/m; ε r = 38.941; ρ = 1000 kg/m 3 Phantom section: Flat Section DASY 5 Configuration: Probe: EX3DV4 - SN7620; ConvF(8.2, 8.2, 8.2); Calibrated: 2022/11/20 Sensor-Surface: 1.4mm (Mechanical Surface Detection) Electronics: DAE4 Sn1267; Calibrated: 2022/12/10 Phantom: SAM 2; Type: SAM Twin; Serial: 1640 DASY52 52.10.4(1527); SEMCAD X 14.6.14(7483) Configuration/d=10mm, Pin=250mW/Area Scan (7x9x1): Measurement grid: dx=12mm, dy=12mm Maximum value of SAR (measured) = 16.6 W/kg Configuration/d=10mm, Pin=250mW/Zoom Scan (7x7x7)/Cube 0: Measurement grid: dx=5mm, dy=5mm, dz=5mm Reference Value = 89.14 V/m; Power Drift = -0.08 dB Peak SAR (extrapolated) = 26.6 W/kg SAR(1 g) = 12.6 W/kg; SAR(10 g) = 5.81 W/kg Maximum value of SAR (measured) = 16.6 W/kg 0 dB = 16.6 W/kg = 12.20 dBW/kg

Report No.: ZEWM2307000941RG01 Appendix B Detailed Test Results BT for Head Date: 2023/7/13 Test Laboratory: SGS-SAR Lab B163 Bluetooth DH5 78CH Left Earphone Right side DUT: B163; Type: Wireless Earphone; Serial: 1351322325000001 Communication System: UID 0, Bluetooth (0); Frequency: 2480 MHz;Duty Cycle: 1:1.287 Medium: HSL2450;Medium parameters used: f = 2480 MHz; σ = 1.774 S/m; ε r = 38.873; ρ = 1000 kg/m 3 Phantom section: Flat Section DASY 5 Configuration: Probe: EX3DV4 - SN7620; ConvF(8.2, 8.2, 8.2); Calibrated: 2022/11/20 Sensor-Surface: 1.4mm (Mechanical Surface Detection) Electronics: DAE4 Sn1267; Calibrated: 2022/12/10 Phantom: SAM 2; Type: SAM Twin; Serial: 1640 DASY52 52.10.4(1527); SEMCAD X 14.6.14(7483) Configuration/Body/Area Scan (7x7x1): Measurement grid: dx=12mm, dy=12mm Maximum value of SAR (measured) = 0.817 W/kg Configuration/Body/Zoom Scan (7x7x7)/Cube 0: Measurement grid: dx=5mm, dy=5mm, dz=5mm Reference Value = 14.55 V/m; Power Drift = -0.08 dB Peak SAR (extrapolated) = 1.40 W/kg SAR(1 g) = 0.495 W/kg; SAR(10 g) = 0.188 W/kg Maximum value of SAR (measured) = 1.02 W/kg 0 dB = 1.02 W/kg = 0.09 dBW/kg Date: 2023/7/13 Test Laboratory: SGS-SAR Lab B163 Bluetooth DH5 78CH Right Earphone Right side DUT: B163; Type: Wireless Earphone; Serial: 1351322325000001 Communication System: UID 0, Bluetooth (0); Frequency: 2480 MHz;Duty Cycle: 1:1.287 Medium: HSL2450;Medium parameters used: f = 2480 MHz; σ = 1.774 S/m; ε r = 38.873; ρ = 1000 kg/m 3 Phantom section: Flat Section DASY 5 Configuration: Probe: EX3DV4 - SN7620; ConvF(8.2, 8.2, 8.2); Calibrated: 2022/11/20 Sensor-Surface: 1.4mm (Mechanical Surface Detection) Electronics: DAE4 Sn1267; Calibrated: 2022/12/10 Phantom: SAM 2; Type: SAM Twin; Serial: 1640 DASY52 52.10.4(1527); SEMCAD X 14.6.14(7483) Configuration/Body/Area Scan (7x7x1): Measurement grid: dx=12mm, dy=12mm Maximum value of SAR (measured) = 0.763 W/kg Configuration/Body/Zoom Scan (7x7x7)/Cube 0: Measurement grid: dx=5mm, dy=5mm, dz=5mm Reference Value = 12.46 V/m; Power Drift = 0.01 dB Peak SAR (extrapolated) = 1.20 W/kg SAR(1 g) = 0.403 W/kg; SAR(10 g) = 0.150 W/kg Maximum value of SAR (measured) = 0.754 W/kg 0 dB = 0.754 W/kg = -1.23 dBW/kg

Report No.: ZEWM2307000941RG01 Appendix C Calibration certificate 1.Dipole D2450V2-SN 733 2.DAE DAE4-SN 1267 3.Probe EX3DV4-SN 7620

QR/RD-P01-06B SPECIFICATION DaxianCommunicationTechnologyLimited ShenzhenDaxianTechnologyCo.,Ltd. lchse22261Leftear Bluetoothheadsetantenna MaterialRecognitionLetter Guest households lchse frequency band 2400MHz ～ 2500MHz Projectname22261versionV2.0 Material No. 12-2261X-010 color Black RFdesign Peng.Hustructure design YeZhi.Bi Quality Manager Ziyin.Hu R&D director Lei.Zhang Date2023-07-10 clientconfirmation： Whethertheassemblymeetsyourrequirements ：□ OK □ NG ShenzhenTopantTechnologyCo.,Ltd. ShangshuijingVillage,No.513,ihuaRoad,BujiTown,LonggangDistrict,Shenzhen(oppositetotheNational DefenseTrainingBase)reachedthe7thflooroftheIndustrialParkComplex TEL:0755-28576002 FAX:0755-84276383 ShanghaiBranch:Room201,Building8No,3000LongdongAvenue,IntegratedCircuitIndustrialZone, ZhangjiangHi-techPark,Shanghai TEL:021-61630552 FAX:755-84276383 ConfidentialInformation www.Topant.com.cn Confidentialrequirement ShenzhenDaxianlimitedcompanyofscienceandtechnologyhasproprietarytechnologytoprovideinformation,whichshouldbekept strictlyconfidentialandproprietaryinformation,withoutthepriorwrittenconsentofShenzhenDaxianCo.Ltd.arenotallowedto disclosetoanypersonorcompany. Page2 Changeresume version number ChangecontentReasonforchange Initiate changeParty dateModifier V1.0create2023.07.10 ConfidentialInformation www.Topant.com.cn Confidentialrequirement ShenzhenDaxianlimitedcompanyofscienceandtechnologyhasproprietarytechnologytoprovideinformation,whichshouldbekept strictlyconfidentialandproprietaryinformation,withoutthepriorwrittenconsentofShenzhenDaxianCo.Ltd.arenotallowedto disclosetoanypersonorcompany. Page3 Index 一、Projectdescription..................................................................................................................4 二、BTantenna.................................................................................................................................4 1、specifications....................................................................................................................4 1.1Electricalspecificationstandard............................................................................................4 1.2Antennacomposition.............................................................................................................................................5 2、TheEquipmentofActiveTest..........................................................................................................5 3、test..............................................................................................................................................6 3.1TheTestofstandingWave(VSWR)........................................................................................6 3.1.1testconnection...............................................................................................................6 3.2MeasurementofEfficiency,Power(TRP)andSensitivity(TIS).......................................................6 3.2.1Testsite.............................................................................................................................6 3.2.2Testinstrument...............................................................................................................6 3.2.3testdata.........................................................................................................................6 4、conclusion................................................................................................................................................................6 5、Attachmentchart.....................................................................................................................................................7 5.1、VSWRparameterdiagram................................................................................................................................7 5.2、Matchingcircuit................................................................................................................................................8 6、Passivefieldepattern..........................................................................................................................................9 三、scheduledrawing......................................................................................................................................................10 ConfidentialInformation www.Topant.com.cn Confidentialrequirement ShenzhenDaxianlimitedcompanyofscienceandtechnologyhasproprietarytechnologytoprovideinformation,whichshouldbekept strictlyconfidentialandproprietaryinformation,withoutthepriorwrittenconsentofShenzhenDaxianCo.Ltd.arenotallowedto disclosetoanypersonorcompany. Page4 一Projectdescription Customername：lchse Wholemachinetype：Bluetoothheadset Antennaband： 2400～2500MHz Antennaform ：FPC Feedform ：welding Numberoffeedfeet ：2leftandrightears Hardwareversion：motherboard： 一、BTantenna Thisreportprovidesavarietyofmeasurementsoftheelectricalperformanceofthe22261 antenna.Figure1showstheantennadesignedbythedisplay. antennaappearingdiagram Figure1 1.1Electricalspecificationstandard Thefrequencyrangeoftheantennais2400~2500MHz.Thefollowingtableindicatesthe electricalperformancespecificationsoftheantenna.Theantennaisdesignedandmanufactured byalargedisplay. FrequencyRangeFrequency(MHz)VSWR LeftearBT2400~2500≤2 ConfidentialInformation www.Topant.com.cn Confidentialrequirement ShenzhenDaxianlimitedcompanyofscienceandtechnologyhasproprietarytechnologytoprovideinformation,whichshouldbekept strictlyconfidentialandproprietaryinformation,withoutthepriorwrittenconsentofShenzhenDaxianCo.Ltd.arenotallowedto disclosetoanypersonorcompany. Page5 1.2Antennacomposition TheantennaismainlycomposedofFPC. 2 、 TheEquipmentofActiveTest Satimo3DChamber6×4×4(m) Agilent8960E5515c Networkanalyzer-R&SZVL Figure2 ConfidentialInformation www.Topant.com.cn Confidentialrequirement ShenzhenDaxianlimitedcompanyofscienceandtechnologyhasproprietarytechnologytoprovideinformation,whichshouldbek…

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SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch SZEMC-TRF-01 Rev. A/0 Aug01,2022 Report No.: SZCR230600197102 Page: 1 of 171 Keny Xu EMC Laboratory Manager TEST REPORT Application No.: SZCR2306001971AT Applicant: NOTHING TECHNOLOGY LIMITED Address of Applicant: 80 Cheapside, London, England EC2V 6EE, London, United Kingdom Manufacturer: NOTHING TECHNOLOGY LIMITED Address of Manufacturer: 80 Cheapside, London, England EC2V 6EE, London, United Kingdom Equipment Under Test (EUT): EUT Name: Wireless Earphone Model No.: B163 Trade Mark: cmf by NOTHING FCC ID: 2AZEQ-B163 Standard(s) : 47 CFR Part 15, Subpart C 15.247 Date of Receipt: 2023-06-25 Date of Test: 2023-06-30 to 2023-07-06 Date of Issue: 2023-07-11 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/0 Aug01,2022 Report No.: SZCR230600197102 Page: 2 of 171 Revision Record Version Chapter Date Modifier Remark 01 2023-07-11 Original Authorized for issue by: Charlie Dai/Project Engineer Eric Fu/Reviewer SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch SZEMC-TRF-01 Rev. A/0 Aug01,2022 Report No.: SZCR230600197102 Page: 3 of 171 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 Other requirements Frequency Hopping Spread Spectrum System Hopping Sequence N/A 47 CFR Part 15, Subpart C 15.247(a)(1),(g),(h) Pass Radio Spectrum Matter Part Item Standard Method Requirement Result Conducted Emissions at AC Power Line (150kHz-30MHz) 47 CFR Part 15, Subpart C 15.247 ANSI C63.10 (2013) Section 6.2 47 CFR Part 15, Subpart C 15.207 Pass Conducted Peak Output Power ANSI C63.10 (2013) Section 7.8.5 47 CFR Part 15, Subpart C 15.247(b)(1) Pass 20dB Bandwidth ANSI C63.10 (2013) Section 7.8.7 47 CFR Part 15, Subpart C 15.247(a)(1) Pass Carrier Frequencies Separation ANSI C63.10 (2013) Section 7.8.2 47 CFR Part 15, Subpart C 15.247a(1) Pass Hopping Channel Number ANSI C63.10 (2013) Section 7.8.3 47 CFR Part 15, Subpart C 15.247a(1)(iii) Pass Dwell Time ANSI C63.10 (2013) Section 7.8.4 47 CFR Part 15, Subpart C 15.247a(1)(iii) Pass Conducted Band Edges Measurement ANSI C63.10 (2013) Section 7.8.6 47 CFR Part 15, Subpart C 15.247(d) Pass Conducted Spurious Emissions ANSI C63.10 (2013) Section 7.8.8 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/0 Aug01,2022 Report No.: SZCR230600197102 Page: 4 of 171 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 ......................................................................................................... 6 4.3 Measurement Uncertainty ............................................................................................................ 6 4.4 Test Location ..........................................................…

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