2AZEQ-B186headphone

NOTHING TECHNOLOGY LIMITED Date: 25 November 2025 To: Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 USA Attestation Section 2.911(d)(5)(i) and Section 2.911(d)(5)(ii) (KDB 986446 D01 Covered Equipment) Section 2.911(d)(5)(i) 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. The software to be loaded prior to marketing of the equipment identified below is not "covered" software manufactured by any entity including predecessors, successors, parents, subsidiaries, or affiliates or any entity which has rebranded or relabeled the software produced by the entity(ies) identified on the "Covered List" DA 24-886 and KDB 986446 D01 Covered Equipment Guidance section B(2a). NOTHING TECHNOLOGY LIMITED (“the applicant”) further certifies that no Cybersecurity or anti-virus software produced or provided by Kaspersky Lab, Inc. or any of its successors and assignees, including equipment with integrated Kaspersky Lab, Inc. (or any of its successors and assignees) cybersecurity or anti-virus software is installed in the equipment being certified. Section 2.911(d)(5)(ii) 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 (as a specifically named entity or any of its subsidiaries or affiliates) as an entity producing “covered” equipment. Type of Equipment subject to FCC Certification: FCC ID: 2AZEQ-B186 If you have any questions, please feel free to contact me Contact Person: Jathan Liu Position in the Company: manager Date of Signature: November 25, 2025 ___________________________ Signatory (signature of the applicant)

Date: 25 November 2025 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-B186 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. Yours Sincerely, Jathan Liu

Date: 25 November 2025 NOTHING TECHNOLOGY LIMITED To: Federal Communications Commission, Authorization & Evaluation Division, 7435 Oakland Mills Road, Columbia, MD 21046 Re: NOTHING TECHNOLOGY LIMITED FCC ID: 2AZEQ-B186 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-B186 be kept confidential: Exhibit Type File Name Block Diagram Block Diagram.pdf Schematics Schematics.pdf Operational Description Operational Description.pdf Tune-up Tune-up.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. Yours Sincerely, Jathan Liu

Report No.: BL-SZ25A0561-401 Tel: +86-755-66850100 E-mail: [email protected] Page No. 1 / 27 Web: www.titcgroup.com Template No.: TRP-FCC 15B&ICES 003 (2025-11-05) 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: Bedford House 21A John Street, London, United Kingdom WC1N 2BF Equipment Type: headphone Model Name: B186 Brand Name: NOTHING Test Standard: 47 CFR Part 15 Subpart B ICES-003 (Issue 7,October 15, 2020) ANSI C63.4-2014 Sample Arrival Date: Oct. 20, 2025 Test Date: Oct. 22, 2025 Date of Issue: Feb. 05, 2026 ISSUED BY: Shenzhen BALUN Technology Co., Ltd. Tested by: Xiao Tangqi Checked by: Xiong Chong Approved by: Tolan Tu (Testing Director) _______________ _______________ _______________ Report No.: BL-SZ25A0561-401 Tel: +86-755-66850100 E-mail: [email protected] Page No. 2 / 27 Web: www.titcgroup.com Template No.: TRP-FCC 15B&ICES 003 (2025-11-05) 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 Feb. 05, 2026 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 Ancillary Equipment ............................................................................................................ 4 2.5 Technical Information ......................................................................................................... 4 3 SUMMARY OF TEST RESULTS ............................................................................................... 5 3.1 Test Standards ................................................................................................................... 5 3.2 Verdict ................................................................................................................................ 5 3.3 Test Uncertainty ................................................................................................................. 5 4 GENERAL TEST CONFIGURATIONS ...................................................................................... 6 4.1 Test Enclosure List ............................................................................................................. 6 4.2 Test Configurations ............................................................................................................. 6 4.3 Test Setups ........................................................................................................................ 7 5 TEST ITEMS ............................................................................................................................. 9 5.1 Emission Tests ................................................................................................................... 9 ANNEX A TEST RESULTS ........................................................................................................ 14 A.1 Radiated Emission ............................................................................................................ 14 A.2 Conducted Emission, AC Ports ......................................................................................... 23 ANNEX B TEST SETUP PHOTOS ............................................................................................ 26 ANNEX C EUT EXTERNAL PHOTOS ........................................................................................ 26 ANNEX D EUT INTERNAL PHOTOS ......................................................................................... 26 Report No.: BL-SZ25A0561-401 Tel: +86-755-66850100 E-mail: [email protected] Page No. 3 / 27 Web: www.titcgroup.com Template No.: TRP-FCC 15B&ICES 003 (2025-11-05) 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 Building 2, Intelligent Connected Vehicle Industrial Park, No. 55, Xiangshan Road, Luotian Community, Yanluo Sub-district, Bao'an District, Shenzhen Accreditation Certificate The laboratory is a testing organization accredited by FCC as a accredited testing laboratory. The designation number is CN1196.The certification body is American Association for Laboratory Accreditation (A2LA). Report No.: BL-SZ25A0561-401 Tel: +86-755-66850100 E-mail: [email protected] Page No. 4 / 27 Web: www.titcgroup.com Template No.: TRP-FCC 15B&ICES 003 (2025-11-05) Ad…

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