FCC ID: 2BFJ5-ASTRUMXZPRO True Wireless Stereo Earphones

ASTRUM WORLD INC To: Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA Date: 03-29-2024 Ref: Attestation Statements Part 2.911(d)(7) Filing FCC ID: 2BFJS-ASTRUMXZPRO ASTRUM WORLD INC (the applicant) certifies that, as of the date of the filing of the application,

(ASTRUM WORLD INC) is our designated U.S. agent for service of process for the above referenced FCC ID. ASTRUM WORLD INC accepts to maintain an agent for no less than one year after the grantee has terminated all marketing and importation or the conclusion of any Commission-related proceeding involving the equipment.

(ASTRUM WORLD INC) accepts, as of the date of the filing of the application, the obligation of the designated U.S. agent for service of process for the above referenced FCC ID. Designated U.S. Agent Information:

FRN: 0035179522 Name: ASTRUM WORLD INC Address: 3580 WILSHIRE BLVD, 1410, LOS ANGELES, CA 90010, United States Contact Person: Nina Liu Tel.: +1 (213) 603 1573 Email: nina@astrumtech.com Sincerely,

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ASTRUM WORLD INC Date (03/29/2024) TUV SUD BABT UNLIMITED TCB Octagon House, Segensworth North, Fareham, Hampshire, PO15 5RL, United Kingdom Confidentiality Request FCC ID: 2BFJ5-ASTRUMXZPRO Pursuant to Sections 0.457(d)(1)(ii) and 0.459 of the Commissions Rules, ASTRUM WORLD INC hereby requests permanent confidential treatment of information accompanying this application as outlined below:

Schematics Bill of Materials/Parts List Block Diagrams Theory of Operation ASTRUM WORLD INC also hereby requests short-term confidential treatment of information accompanying this application as outlined below for a period of 180 days:

Internal Photos External Photos User Manual Test Set-up Photographs The above materials contain trade secrets and proprietary information not customarily released to the public. The public disclosure of these matters might be helreaitut to the Applicant and provide unjustified benefits to its competitors. The Applicant understands that pursuant to Rule 0.457(d)(1)(ii), disclosure of this Application and all accompanying materials will not be made before the date of the Grant for this Application. Yours sincerely, Company Officer: Nina Liu Telephone Number: (213) 603-1573 Email: nina@astrumtech.com

ASTRUM WORLD INC Date: 03-29-2024 To: Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA Ref: Attestation Statements Part 2.911(d)(5)(i) and Part 2.91 1(d)(5)(ii) Filing Re. KDB 986446 DO1 FCC ID: 2BFJ5-ASTRUMXZPRO Dear Sir or Madam,

[ASTRUM WORLD INC] (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. We also certify that, [ASTRUM WORLD INC] (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 . If you have any questions, please contact us. Sincerely, Nive driv Contact name: Nina Liu Company name: ASTRUM WORLD INC Address: 3580 WILSHIRE BLVD, 1410, LOS ANGELES, CA 90010, United States E-mail: nina@astrumtech.com Tel: (213) 603-1573

ASTRUM WORLD INC Date (03/29/2024) TUV SUD BABT UNLIMITED TCB Octagon House, Segensworth North, Fareham, Hampshire, PO15 5RL, United Kingdom Dear Sir or Madam, We, ASTRUM WORLD INC 3580 WILSHIRE BLVD, 1410, LOS ANGELES, CA 90010, United States hereby declare that, Type of equipment: True Wireless Stereo Earphones Model name: ASTRUM XZ PRO, ASTRUM XZ PIA, ET310, ET330, ET340, ET360, TW110, TW210, TW220, TW300 FCC ID: 2BFJS-ASTRUMXZPRO Models ASTRUM XZ PRO, ASTRUM XZ PIA, ET310, ET330, ET340, ET360, TW110, TW210, TW220, TW300 have two separate earphones, left part and right part earphone, we declared that the hardware and software of left earphone and right earphone are same, including technical construction, circuit diagram, PCB, layout, components, component layout, Bluetooth chip and all electrical construction. We also declared that the RF parameters of left part and right part also the same, including output power, transmitting/receiving frequency, bandwidth, power density and anyother RF parameters. Yours sincerely, Company Officer: Nina Liu Telephone Number: (213) 603-1573 Email: nina@astrumtech.com

ASTRUM WORLD INC To: TUV SUD Certification and Testing (China) Co., Ltd. Shenzhen Branch Date: March 29, 2024 Total Page (Cover Included): 1 Subject: Declaration letter We: ASTRUM WORLD INC 3580 WILSHIRE BLVD, 1410, LOS ANGELES, CA 90010, United States Officially notify TUV SUD Certification and Testing (China) Co., Ltd. Shenzhen Branch that the

<<Model A>> have the same technical construction including circuit diagram, PCB Layout, components and component layout, all electrical construction and mechanical construction, with

<<PRODUCT>>, <<Model B>>. The difference lies only in the outlook/color of the different models.

<<Model A>>: ASTRUM XZ PIA, ET310, ET330, ET340, ET360, TW110, TW210, TW220, TW300

<<Model B>>: ASTRUM XZ PRO

<<Product>>: True Wireless Stereo Earphones FCC ID: 2BFJ5-ASTRUMXZPRO Applicant: ASTRUM WORLD INC 2024-03-29 N thin iw

(Date) (Applicant's authorized signature) file: declaration letter-template Page 1 of 1

ASTRUM WORLD INC Data: 2024-04-11 Subject: Statement of disable BLE by software FCC ID: 2BFJ5-ASTRUMXZPRO To Whom It May Concern:

We ASTRUM WORLD INC hereby declare that BLE are disabled by software in the factory, this setting is not accessible and cant active by the user or any other third-party. Best Regards Vinar Liw Contact name: Nina Liu Company name: ASTRUM WORLD INC Address: 3580 WILSHIRE BLVD, 1410, LOS ANGELES, CA 90010, United States E-mail: nina@astrumtech.com Tel: (213) 603-1573

ASTRUM WORLD INC Date: 03/29/2024 To: Federal Communications Commission 7435 Oakland Mills Road Columbia MD FCC ID: 2BFJ5-ASTRUMXZPRO To Whom It May Concern:

This letter is to ascertain that < ASTRUM WORLD INC>

Product name: True Wireless Stereo Earphones, Model: ASTRUM XZ PRO, ASTRUM XzZ PIA, ET310, ET330, ET340, ET360, TW110, TW210, TW220, TW300 has been the units used for conducting FCC compliance testing, the SDoC part will be tested by FCC recognized test lab. If you have any question or concerns, please contact us. Sincerely, Nin lin Contact name: Nina Liu Company name: ASTRUM WORLD INC Address: 3580 WILSHIRE BLVD, 1410, LOS ANGELES, CA 90010, United States E-mail: nina@astrumtech.com Tel: (213) 603-1573