2AZEQ-B172CWireless Earphone

Rev1/26/2023 (NOTHINGTECHNOLOGYLIMITED) FederalCommunicationsCommission AuthorizationandEvaluationDivision 7435OaklandMillsRoad Columbia,MD21046 USA Date:2024-06-13 Ref:AttestationStatementsPart2.911(d)(5)(i)Filing FCCID:2AZEQ-B172C [NOTHINGTECHNOLOGYLIMITED]certifiesthattheequipmentforwhichauthorizationissoughtisnot “covered”equipmentprohibitedfromreceivinganequipmentauthorizationpursuanttosection2.903of theFCCrules. Sincerely, (Applicantsignature) (JathanLiu) Rev1/26/2023 (NOTHINGTECHNOLOGYLIMITED) FederalCommunicationsCommission AuthorizationandEvaluationDivision 7435OaklandMillsRoad Columbia,MD21046 USA Date:2024-06-13 Ref:AttestationStatementsPart2.911(d)(5)(ii)Filing FCCID:2AZEQ-B172C [NOTHINGTECHNOLOGYLIMITED]certifiesthat,asofthedateofthefilingoftheapplication,the applicantisnotidentifiedontheCoveredList(asaspecificallynamedentityoranyofitssubsidiariesor affiliates)asanentityproducing“covered”equipment. Sincerely, (Applicantsignature) (JathanLiu)

Date: 23 May 2024 NOTHING TECHNOLOGY LIMITED To: Federal Communications Commission, Authorization & Evaluation Division, 7435 Oakland Mills Road, Columbia, MD 21046 To Whom It May Concern: The NOTHING TECHNOLOGY LIMITED the undersigned, hereby authorizes Mr. Wu Xuewen from Shenzhen BALUN Technology Co., Ltd., to act on the behalf of the NOTHING TECHNOLOGY LIMITED solely in matters relating to the application for an FCC equipment authorization for FCC ID: 2AZEQ-B172C including the signing of documents in connection with this Application. Necessary acts carried out by Shenzhen BALUN Technology Co., Ltd. in connection with the Application shall have the same effect as acts of the NOTHING TECHNOLOGY LIMITED The NOTHING TECHNOLOGY LIMITED also hereby certify that no party to this application is subject to a denial of benefits, including FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C. Section 862. Sincerely, Print Name: Jathan Liu Title: Regulatory Manager Signature: . On behalf of Company: NOTHING TECHNOLOGY LIMITED E-mail: [email protected]

Date: 23 May 2024 NOTHING TECHNOLOGY LIMITED To: Federal Communications Commission, Authorization & Evaluation Division, 7435 Oakland Mills Road, Columbia, MD 21046 Re: NOTHING TECHNOLOGY LIMITED FCC ID: 2AZEQ-B172C FCC Certification Confidentiality Request Gentlemen: This letter is to comply with 47 CFR 0.457 and 0.459 pertaining to confidentiality material. NOTHING TECHNOLOGY LIMITED requests that the following documents regarding this submission for FCC ID: 2AZEQ-B172C be kept confidential: Exhibit Type File Name Block Diagram Block Diagram.pdf Schematics Schematics.pdf Operational Description Operational Description.pdf And below exhibit kept short-term confidential (180 days): External photos External photos.pdf Test setup photos test photo.pdf Internal photos Internal photos.pdf User manual User manual.pdf Those documents contain detailed system and equipment description and related information about the product which NOTHING TECHNOLOGY LIMITEDconsiders to be confidential proprietary, a custom design and, otherwise, not releasable to the general public. Since this design is a basis form which future technological products will evolve, NOTHING TECHNOLOGY LIMITED considers this information would be of benefit to its competitors, and that the disclosure of the information in these documents would give competitors an unfair advantage in the market. Sincerely, Print Name: Jathan Liu Title: Regulatory Manager Signature: . On behalf of Company: NOTHING TECHNOLOGY LIMITED E-mail: [email protected]

4.0mm 5.0mm 0.8mm 0.8mm 5.4mm 6.0mm V0.1 12 3 4 56 7 8910 1 23 45 6 7 8910 A B C D E F A B C D E F PVT 2327223272 ARTWORKCASE Jon 11/02/2024 初版菲林释放 V0.2 Jon 18/02/2024 1：内托下盖cmf by NOTHING移印改为模具纹理 2：内托上盖移印菲林设计调整 V0.3 Jon 08/03/2024 1：增加PSE logo 2：调整镭雕菲林设计 V2.0 Coin 31/05/2024 调整镭雕菲林设计 上盖内托镭雕菲林

Report No.: BL-SZ2440323-705 Tel: +86-755-66850100 E-mail: [email protected] Page No. 1 / 9 Web: www.titcgroup.com Template No.: TRP-FCC-Portable-2 (2023-10-07) Add: Block B, 1/F, Baisha Science and Technology Park, Shahe Xi Road, Nanshan District, Shenzhen, Guangdong Province, P. R. China TEST REPORT Applicant: Address: Equipment Type: Model Name: Brand Name: FCC ID: NOTHING TECHNOLOGY LIMITED 80 Cheapside, London, England EC2V 6EE Wireless Earphone B172 cmf by NOTHING 2AZEQ-B172C Test Standard: 47 CFR Part 2.1093 (refer to section 3.1) Sample Arrival Date: Apr. 02, 2024 Test Date: Apr. 24, 2024 - Apr. 30, 2024 Date of Issue: May 22, 2024 ISSUED BY: Shenzhen BALUN Technology Co., Ltd. Tested by: Xiong Lining Checked by: Xu Rui Approved by: Tolan Tu (Testing Director) _______________ _______________ _______________ Report No.: BL-SZ2440323-705 Tel: +86-755-66850100 E-mail: [email protected] Page No. 2 / 9 Web: www.titcgroup.com Template No.: TRP-FCC-Portable-2 (2023-10-07) Add: Block B, 1/F, Baisha Science and Technology Park, Shahe Xi Road, Nanshan District, Shenzhen, Guangdong Province, P. R. China Revision History Version Issue Date Revisions Content Rev. 01 May 22, 2024 Initial Issue TABLE OF CONTENTS 1 GENERAL INFORMATION ......................................................................................................... 3 1.1 Test Laboratory .............................................................................................................. 3 1.2 Test Location .................................................................................................................. 3 2 PRODUCT INFORMATION ......................................................................................................... 4 2.1 Applicant Information ...................................................................................................... 4 2.2 Manufacturer Information ............................................................................................... 4 2.3 General Description for Equipment under Test (EUT) ................................................... 4 2.4 Technical Information ..................................................................................................... 4 3 SUMMARY OF TEST RESULT ................................................................................................... 5 3.1 Test Standards ............................................................................................................... 5 4 DEVICE CATEGORY AND LEVELS LIMITS .............................................................................. 6 5 ASSESSMENT RESULT ............................................................................................................. 8 5.1 Output Power ................................................................................................................. 8 5.2 Tune-up power ............................................................................................................... 8 5.3 RF Exposure Evaluation Result ..................................................................................... 8 5.4 Conclusion ...................................................................................................................... 8 Report No.: BL-SZ2440323-705 Tel: +86-755-66850100 E-mail: [email protected] Page No. 3 / 9 Web: www.titcgroup.com Template No.: TRP-FCC-Portable-2 (2023-10-07) Add: Block B, 1/F, Baisha Science and Technology Park, Shahe Xi Road, Nanshan District, Shenzhen, Guangdong Province, P. R. China 1 GENERAL INFORMATION 1.1 Test Laboratory Name Shenzhen BALUN Technology Co., Ltd. Address Block B, 1/F, Baisha Science and Technology Park, Shahe Xi Road, Nanshan District, Shenzhen, Guangdong Province, P. R. China Phone Number +86 755 6685 0100 1.2 Test Location Name Shenzhen BALUN Technology Co., Ltd. Location Block B, 1/F, Baisha Science and Technology Park, Shahe Xi Road, Nanshan District, Shenzhen, Guangdong Province, P. R. China 1/F, Building B, Ganghongji High-tech Intelligent Industrial Park, No. 1008, Songbai Road, Yangguang Community, Xili Sub-district, Nanshan District, Shenzhen, Guangdong Province, P. R. China Accreditation Certificate The laboratory is a testing organization accredited by FCC as a accredited testing laboratory. The designation number is CN1196. Report No.: BL-SZ2440323-705 Tel: +86-755-66850100 E-mail: [email protected] Page No. 4 / 9 Web: www.titcgroup.com Template No.: TRP-FCC-Portable-2 (2023-10-07) Add: Block B, 1/F, Baisha Science and Technology Park, Shahe Xi Road, Nanshan District, Shenzhen, Guangdong Province, P. R. China 2 PRODUCT INFORMATION 2.1 Applicant Information Applicant NOTHING TECHNOLOGY LIMITED Address 80 Cheapside, London, England EC2V 6EE 2.2 Manufacturer Information Manufacturer NOTHING TECHNOLOGY LIMITED Address 80 Cheapside, London, England EC2V 6EE 2.3 General Description for Equipment under Test (EUT) EUT Name Wireless Earphone Model Name Under Test B172 Series Model Name N/A Description of Model name differentiation N/A HVIN B172C Hardware Version N/A Software Version N/A Dimensions (Approx.) N/A Weight (Approx.) N/A 2.4 Technical Information Network and Wireless connectivity Bluetooth (BR+EDR+BLE) The requirement for the following technical information of the EUT was tested in this report: Operating Mode Bluetooth Frequency Range Bluetooth 2400 ~ 2483.5 MHz Antenna Type Bluetooth Slot Antenna Exposure Category General Population/Uncontrolled Exposure Product Type Portable Device Report No.: BL-SZ2440323-705 Tel: +86-755-66850100 E-mail: [email protected] Page No. 5 / 9 Web: www.titcgroup.com Template No.: TRP-FCC-Portable-2 (2023-10-07) Add: Block B, 1/F, Baisha Science and Technology Park, Shahe Xi Road, Nanshan District, Shenzhen, Guangdong Province, P. R. China 3 SUMMARY OF TEST RESULT 3.1 Test Standards No. Identity Document Title 1 47 CFR Part 2.1093 Radiofrequency radiation exposure evaluation: portable devices 2 KDB 447498 D04 v0…

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Antenna specification 1 APPROVAL CustomerLCHSE frequency band 2400MHZ～2500MHZ project name23272versionsPCB V1.4 Material numberANT03colour/ Antenna vendorShenzhen Jingxun Technology Co., Ltd Vendor address 3rd Floor, Building A5, Nanshan Zhiyuan, No. 1001 Xueyuan Avenue, Nanshan District, Shenzhen designed ByYao Hong guangDay2024-05-13 QA Manager ByDay Approved ByDay Confirmed by CustomerDay Table of contents 2. Antenna appearance and dimensions 3. Detailed information about antenna parameters 1. antenna parameters 2 3 Frequency 2400～2500MHZ Effi AVG 31.33% PK Gain -1.39dBi SWR <3 Antenna Type slot antenna PART NO ANT03 Antenna size5.8 x 1.5mm 1. antenna parameters 4 2. Antenna appearance and dimensions Antenna size: 5.8 x 1.5mm Antenna location BOTTOM TOP 5 Antenna pattern: Antenna Effeciency S11 Parameters 3. Detailed information about antenna parameters Free space Frequency (MHz) Efficiency （%） Efficiency (dB) Gain(dBi) 2400 34.21-4.66-1.91 2410 34.65-4.6-1.85 2420 34.16-4.67-1.95 2430 33.02-4.81-1.99 2440 32.48-4.88-1.72 2450 32.04-4.94-1.42 2460 30.91-5.1-1.42 2470 30.09-5.22-1.39 2480 28.82-5.4-1.44 2490 27.58-5.59-1.53 2500 26.64-5.74-1.54 AVG 31.33 -5.06 -1.65 XOY:Thata=90 ° XOZ:Phi=0° YOZ:Phi=90° The End 6

Report No.: BL-SZ2440323-605 Tel: +86-755-66850100 E-mail: [email protected] Page No. 1 / 69 Web: www.titcgroup.com Template No.: TRP-FCC&ISED 247 (2022-01-12) Add: Block B, 1/F, Baisha Science and Technology Park, Shahe Xi Road, Nanshan District, Shenzhen, Guangdong Province, P. R. China TEST REPORT Applicant: NOTHING TECHNOLOGY LIMITED Address: 80 Cheapside, London, England EC2V 6EE Equipment Type: Wireless Earphone Model Name: B172 Brand Name: cmf by NOTHING FCC ID: 2AZEQ-B172C ISED Number: 27102-B172C Test Standard: 47 CFR Part 15 Subpart C RSS-Gen Issue 5 RSS-247 Issue 3 (refer to section 3.1) Sample Arrival Date: Apr. 02, 2024 Test Date: Apr. 24, 2024 - Apr. 30, 2024 Date of Issue: Jun. 06, 2024 ISSUED BY: Shenzhen BALUN Technology Co., Ltd. Tested by: Julie Zhu Checked by: Ye Hongji Approved by: Liao Jianming (Technical Director) _______________ _______________ _______________ Report No.: BL-SZ2440323-605 Tel: +86-755-66850100 E-mail: [email protected] Page No. 2 / 69 Web: www.titcgroup.com Template No.: TRP-FCC&ISED 247 (2022-01-12) Add: Block B, 1/F, Baisha Science and Technology Park, Shahe Xi Road, Nanshan District, Shenzhen, Guangdong Province, P. R. China Revision History Version Issue Date Revisions Rev. 01 May 22, 2024 Initial Issue Rev. 02 Jun. 06, 2024 1. Updated the power test data and plots in Section A.1. 2. Updated the ANNEX C EUT EXTERNAL PHOTOS. TABLE OF CONTENTS 1 GENERAL INFORMATION ......................................................................................................... 4 1.1 Test Laboratory .............................................................................................................. 4 1.2 Test Location .................................................................................................................. 4 2 PRODUCT INFORMATION ......................................................................................................... 5 2.1 Applicant Information ...................................................................................................... 5 2.2 Manufacturer Information ............................................................................................... 5 2.3 General Description for Equipment under Test (EUT) ................................................... 5 2.4 Technical Information ..................................................................................................... 6 3 SUMMARY OF TEST RESULTS ................................................................................................. 7 3.1 Test Standards ............................................................................................................... 7 3.2 Test Verdict .................................................................................................................... 7 4 GENERAL TEST CONFIGURATIONS ........................................................................................ 8 4.1 Test Environments ......................................................................................................... 8 4.2 Test Equipment List ........................................................................................................ 8 4.3 Test Software List ........................................................................................................... 8 4.4 Measurement Uncertainty .............................................................................................. 9 4.5 Description of Test Setup ............................................................................................... 9 4.6 Measurement Results Explanation Example ................................................................ 12 5 TEST ITEMS .............................................................................................................................. 13 5.1 Antenna Requirements ................................................................................................. 13 5.2 Output Power ............................................................................................................... 14 5.3 Occupied Bandwidth .................................................................................................... 16 Report No.: BL-SZ2440323-605 Tel: +86-755-66850100 E-mail: [email protected] Page No. 3 / 69 Web: www.titcgroup.com Template No.: TRP-FCC&ISED 247 (2022-01-12) Add: Block B, 1/F, Baisha Science and Technology Park, Shahe Xi Road, Nanshan District, Shenzhen, Guangdong Province, P. R. China 5.4 Conducted Spurious Emission ..................................................................................... 17 5.5 Band Edge (Authorized-band band-edge) .................................................................... 19 5.6 Conducted Emission .................................................................................................... 21 5.7 Radiated Spurious Emission ........................................................................................ 22 5.8 Band Edge (Restricted-band band-edge) ..................................................................... 27 5.9 Power Spectral density (PSD) ...................................................................................... 28 ANNEX A TEST RESULT ............................................................................................................. 29 A.1 Output Power, E.I.R.P, Duty Cycle ............................................................................... 29 A.2 Occupied Bandwidth .................................................................................................... 33 A.3 Conducted Spurious Emissions ................................................................................... 37 A.4 Band Edge (Authorized-band band-edge) .................................................................... 42 A.5 Conducted Emissions ................................................................................................... 45 A.6 Radiated S…

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