2AZEQ-B157ear(Stick)

NOTHING TECHNOLOGY LIMITED To: Federal Communications Commission Office of Engineering and Technology Laboratory Division 7435 Oakland Mills Rd. Columbia MD 21046 Regarding: Confidentiality Request regarding application for FCC ID: 2AZEQ-B157 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 Telephone: 8618938035041 E-mail: [email protected]

Compliance Certification Services (Kunshan) Inc. Shenzhen Branch Page: 1 of 6 External Photos for FYCR2205000194AT FCC ID: 2AZEQ-B157 Compliance Certification Services (Kunshan) Inc. Shenzhen Branch Page: 2 of 6 EUT Constructional Details (EUT Photos) Compliance Certification Services (Kunshan) Inc. Shenzhen Branch Page: 3 of 6 Compliance Certification Services (Kunshan) Inc. Shenzhen Branch Page: 4 of 6 Compliance Certification Services (Kunshan) Inc. Shenzhen Branch Page: 5 of 6 Compliance Certification Services (Kunshan) Inc. Shenzhen Branch Page: 6 of 6

NOTHING TECHNOLOGY LIMITE Label placement To Federal Communication Commission Equipment Authorization Branch 7 435 Oakland Mills Road Columbia, MID 21046 For the following product, Model Name/Number: B157 FCC ID: 2AZEQ-B157 The FCC ID is not affixed on the product itself, but described in the product user manual and the product package due to below reasons. Reasons： The product is too small and not flat to put the label on it. The Size is below: 29.5 mm* 18.8 mm* 18.6 mm Print Name: Jathan Liu Title: Regulatory Manager Signature: On behalf of Company: NOTHING TECHNOLOGY LIMITE E-mail: [email protected]

Compliance Certification Services (Kunshan) Inc. Shenzhen Branch Page: 1 of 10 Internal Photos for FYCR2205000194AT FCC ID: 2AZEQ-B157 Compliance Certification Services (Kunshan) Inc. Shenzhen Branch Page: 2 of 10 EUT Constructional Details (EUT Photos) Left Antenna Right Antenna Compliance Certification Services (Kunshan) Inc. Shenzhen Branch Page: 3 of 10 Compliance Certification Services (Kunshan) Inc. Shenzhen Branch Page: 4 of 10 Compliance Certification Services (Kunshan) Inc. Shenzhen Branch Page: 5 of 10 Compliance Certification Services (Kunshan) Inc. Shenzhen Branch Page: 6 of 10 Compliance Certification Services (Kunshan) Inc. Shenzhen Branch Page: 7 of 10 Compliance Certification Services (Kunshan) Inc. Shenzhen Branch Page: 8 of 10 Compliance Certification Services (Kunshan) Inc. Shenzhen Branch Page: 9 of 10 Compliance Certification Services (Kunshan) Inc. Shenzhen Branch Page: 10 of 10

Compliance Certification Services (Kunshan) Inc. Report No.: KSCR220600089601 Page: 1 of 46 Eric Lin Laboratory Manager FCC SAR TEST REPORT Application No.: KSCR2206000896AT (FYCR2205000194AT) 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 Product Name:ear(Stick) Model No.(EUT): B157 Trade mark:NOTHING FCC ID:2AZEQ-B157 Standard(s) : FCC 47CFR §2.1093 Date of Receipt: 2022-06-01 Date of Test: 2022-06-18 to 2022-06-18 Date of Issue: 2022-06-28 Test Result: Pass* * In the configuration tested, the EUT complied with the standards specified above. Compliance Certification Services (Kunshan) Inc. Report No.: KSCR220600089601 Page: 2 of 46 REVISION HISTORY Revision Record VersionDescriptionDateRemark 00Original2022-06-28/ Authorized for issue by: Richard.Kong/ Project Engineer Eric.Lin/Reviewer Compliance Certification Services (Kunshan) Inc. Report No.: KSCR220600089601 Page: 3 of 46 TEST SUMMARY Maximum Reported SAR(W/kg) 1-g Maximum Reported SAR(W/kg) 10-g Frequency Band HeadExtremity Bluetooth0.170.53 SAR Limited(W/kg)1.64.0 Compliance Certification Services (Kunshan) Inc. Report No.: KSCR220600089601 Page: 4 of 46 CONTENTS 1GENERAL INFORMATION..............................................................................................................................6 1.1GENERAL DESCRIPTION OF EUT.................................................................................................................6 1.1.1DUT Antenna Locations.......................................................................................................................7 1.2TEST SPECIFICATION..................................................................................................................................8 1.3RF EXPOSURE LIMITS.................................................................................................................................9 1.4TEST LOCATION.......................................................................................................................................10 1.5TEST FACILITY.........................................................................................................................................10 2LABORATORY ENVIRONMENT...................................................................................................................11 3SAR MEASUREMENTS SYSTEM CONFIGURATION.................................................................................12 3.1THE SAR MEASUREMENT SYSTEM............................................................................................................12 3.2ISOTROPIC E-FIELD PROBE EX3DV4.........................................................................................................14 3.3DATA ACQUISITION ELECTRONICS (DAE)...................................................................................................15 3.4SAM TWIN PHANTOM...............................................................................................................................15 3.5ELI PHANTOM..........................................................................................................................................16 3.6DEVICE HOLDER FOR TRANSMITTERS........................................................................................................17 3.7MEASUREMENT PROCEDURE.....................................................................................................................18 3.7.1Scanning procedure...........................................................................................................................18 3.7.2Data Storage......................................................................................................................................20 3.7.3Data Evaluation by SEMCAD............................................................................................................20 4SAR MEASUREMENT VARIABILITY AND UNCERTAINTY........................................................................22 4.1SAR MEASUREMENT VARIABILITY..............................................................................................................22 4.2SAR MEASUREMENT UNCERTAINTY...........................................................................................................23 5DESCRIPTION OF TEST POSITION.............................................................................................................24 5.1THE TEST POSITION.................................................................................................................................24 6SAR SYSTEM VERIFICATION PROCEDURE..............................................................................................25 6.1TISSUE SIMULATE LIQUID..........................................................................................................................25 6.1.1Recipes for Tissue Simulate Liquid...................................................................................................25 6.1.2Test Liquids Confirmation..................................................................................................................26 6.1.3Measurement for Tissue Simulate Liquid..........................................................................................27 6.2SAR SYSTEM CHECK...............................................................................................................................28 6.2.1Justification for Extended SAR Dipole Calibrations...........................................................................29 6.2.2Summary System Check Result(s)....................................................................................................30 6.2.3Detailed System Check Results........................................…

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Compliance Certification Services (Kunshan) Inc. Page: 1 of 19 Appendix C for KSCR220600089601 Calibration certificate 1. Dipole D2450V2 - SN 817(2022/04/01) 2. DAE DAE4 - SN 1305(2022/04/27) 3. Probe EX3DV4 - SN 7515(2021/12/28) Compliance Certification Services (Kunshan) Inc. Page: 2 of 19 1. Dipole D2450V2 - SN 817 Compliance Certification Services (Kunshan) Inc. Page: 3 of 19 Compliance Certification Services (Kunshan) Inc. Page: 4 of 19 Compliance Certification Services (Kunshan) Inc. Page: 5 of 19 Compliance Certification Services (Kunshan) Inc. Page: 6 of 19 Compliance Certification Services (Kunshan) Inc. Page: 7 of 19 Compliance Certification Services (Kunshan) Inc. Page: 8 of 19 2. DAE4 - SN 1305 Compliance Certification Services (Kunshan) Inc. Page: 9 of 19 Compliance Certification Services (Kunshan) Inc. Page: 10 of 19

Compliance Certification Services (Kunshan) Inc. Page: 11 of 19 3. EX3DV4 - SN 7515 Compliance Certification Services (Kunshan) Inc. Page: 12 of 19 Compliance Certification Services (Kunshan) Inc. Page: 13 of 19 Compliance Certification Services (Kunshan) Inc. Page: 14 of 19 Compliance Certification Services (Kunshan) Inc. Page: 15 of 19 Compliance Certification Services (Kunshan) Inc. Page: 16 of 19 Compliance Certification Services (Kunshan) Inc. Page: 17 of 19 Compliance Certification Services (Kunshan) Inc. Page: 18 of 19 Compliance Certification Services (Kunshan) Inc. Page: 19 of 19

Compliance Certification Services (Kunshan) Inc. Shenzhen Branch Report No.: FYCR220500019402 Page: 1 of 94 EMC Technical Manager TEST REPORT Application No.: FYCR2205000194AT 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: ear(Stick) Model No.: B157 Trade Mark: NOTHING FCC ID: 2AZEQ-B157 Standard(s) : 47 CFR Part 15, Subpart C 15.247 Date of Receipt: 2022-05-25 Date of Test: 2022-06-08 to 2022-06-13 Date of Issue: 2022-06-16 Test Result: Pass* * In the configuration tested, the EUT complied with the standards specified above. Compliance Certification Services (Kunshan) Inc. Shenzhen Branch Report No.: FYCR220500019402 Page: 2 of 94 Revision Record Version Chapter Date Modifier Remark 01 2022-06-16 Original Authorized for issue by: Tree Zhan/Project Engineer Winkey Wang/Reviewer Compliance Certification Services (Kunshan) Inc. Shenzhen Branch Report No.: FYCR220500019402 Page: 3 of 94 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 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 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 Compliance Certification Services (Kunshan) Inc. Shenzhen Branch Report No.: FYCR220500019402 Page: 4 of 94 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 ............................................................................................................................. 7 4.5 TEST FACILITY ............................................................................................................................... 7 4.6 DEVIATION FROM STANDARDS ......................................................................................................... 7 4.7 ABNORMALITIES FROM STANDARD CONDITIONS ................................................................................. 7 5 EQUIPMENT LIST ............................................................................................................................... 8 6 RADIO SPECTRUM TECHNICAL REQUIREMENT ............................................................................13 6.1 ANTENNA REQUIREMENT ................................................................................................................13 6.1.1 Test Requirement: ..................................................................................................................13 6.1.2 Conclusion ..............................................................................................................................13 7 RADIO SPECTRUM MATTER TEST RESULTS .................................................................................14 7.1 CONDUCTED EMISSIONS AT AC POWER LINE (150KHZ-30MHZ) ........................................................14 7.1.1 E.U.T. Operation .....................................................................................................................14 7.1.2 Test Mode Description ............................................................................................................14 7.1.3 Test Setup Diagram ................................................................................................................15 7.1.4 Measurement Procedure and Data .........................................................................................15 7.2 CONDUCTED PEAK OUTPUT POWER ................................................................................................18 7.2.1 E.U.T. Operation .....................................................................................................................18 7.2.2 Test Mode Description .....................................................................................…

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Frequency MHz Gain(dBi)Effiency(dB )Rate % Frequency MHz Gain(dBi) Effiency(dB ) Rate % 2400-3.63-6.2123.932400-2.24-7.4118.16 2410-3.77-6.3023.432410-2.10-7.3318.49 2420-4.00-6.3623.112420-1.93-7.2019.04 2430-4.41-6.5921.942430-1.86-7.2118.99 2440-4.84-6.8120.842440-1.80-7.2118.99 2450-5.07-6.8720.582450-1.58-7.0819.59 2460-5.41-7.0419.762460-1.59-7.0819.57 2470-5.25-6.9120.392470-1.25-6.8220.80 2480-5.23-6.8520.652480-1.11-6.6721.55 Avg-4.62-6.6621.63Avg-1.72-7.1119.46 Antenna Photos B157 Antenna Gain R eport Type: PIFA Left-Free SpaceRihgt-Free Space Theta=90° Theta=90° Phi=0° Phi=0° Phi=90° Phi=90°

Compliance Certification Services (Kunshan) Inc. Shenzhen Branch Page: 1 of 4 Appendix Photographs of Test Setup for FYCR2205000194AT FCC ID: 2AZEQ-B157 Compliance Certification Services (Kunshan) Inc. Shenzhen Branch Page: 2 of 4 Test Setup Photos Left earbuds Conducted Emissions at AC Power Line (150kHz-30MHz) Radiated Spurious Emissions Above 1GHz Compliance Certification Services (Kunshan) Inc. Shenzhen Branch Page: 3 of 4 Radiated Spurious Emissions Below 1GHz Right earbuds Conducted Emissions at AC Power Line (150kHz-30MHz) Compliance Certification Services (Kunshan) Inc. Shenzhen Branch Page: 4 of 4 Radiated Spurious Emissions Above 1GHz Radiated Spurious Emissions Below 1GHz