FCC ID: 2BB27-K3C0003 TWS Headset

n u t n o r e w o P

a FCC Statement This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions:

(1)This device may not cause harmful interference.

(2)This device must accept any interference received, including interference that may cause undesired operation. 2. Changes or modifications not expressly approved by the party responsible for compliance could void the users authority to operate the equipment. Note:This equipment has been tested and found to comply with the limits for a class B digital device,pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates uses and can radiate radio frequence energy and,if not installed and used in accordance with the instructions,may cause harmful interference to radio communications.However,there is no guarantee that interference will not occur in a particular installation.if this equipmemt does cause harmful interference to radio or television reception,which can be determined by turning the equipment off and on,the user is encouraged to try to correct the interference by one or more of the following measures:

? Reorient or relocate the receiving antenna.

? Increase the separation between the equipment and receiver.

? Connect the equipment into an autlet on a circuit different from that to which the receiver is connected.

? Consult the dealer or an experienced radio/TV technician for help. The device has been evaluated to meet general RF exposure requirement. The device can be used in portable exposure condition without restriction.

Foshan Heizuan Trading Co., Ltd 2024-01-10 Eurofins Electrical and Electronic Testing NA, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 RE: LETTER OF AGENT AUTHORIZATION To Whom It May Concern:

We, the undersigned, hereby authorize Guangdong Global Testing Technology Co., Ltd. to act on our behalf in all matters relating to application for equipment authorization, including the signing of all documents relating to these matters. We also hereby certify that no party to the application authorized hereunder is subject to the denial of benefits, including FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C.853(a). This agreement expires one year from the current date. Sincerely, suihao pang Manager Foshan Heizuan Trading Co., Ltd One of the first floors of Building A, No. 8, Fengxiugang Industrial Zone, Bichong, Huangqi, Nanhai District, Foshan City

Foshan Heizuan Trading Co., Ltd 2024-01-10 Eurofins Electrical and Electronic Testing NA, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 RE: Attestation Statements Part 2.911(d)(5)(i) request for (FCC ID: 2BB27-K3C0003)

[Foshan Heizuan Trading Co., Ltd] (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. Sincerely, suihao pang Manager Foshan Heizuan Trading Co., Ltd One of the first floors of Building A, No. 8, Fengxiugang Industrial Zone, Bichong, Huangqi, Nanhai District, Foshan City Foshan Heizuan Trading Co., Ltd 2024-01-10 Eurofins Electrical and Electronic Testing NA, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 RE: Attestation Statements Part 2.911(d)(5)(ii) request for(FCC ID: 2BB27-K3C0003)

[Foshan Heizuan Trading Co., Ltd ] (the applicant) certifies that, as of the date of the filing of the application, the applicant is not identified on the Covered List as an entity producing covered equipment. Sincerely, suihao pang Manager Foshan Heizuan Trading Co., Ltd One of the first floors of Building A, No. 8, Fengxiugang Industrial Zone, Bichong, Huangqi, Nanhai District, Foshan City

Foshan Heizuan Trading Co., Ltd 2024-01-10 Eurofins Electrical and Electronic Testing NA, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 RE: CONFIDENTIALITY REQUEST FOR (EUT Name: TWS Headset

/Model: k3c0003/FCC ID: 2BB27-K3C0003) To Whom It May Concern:

This letter serves as an official request for confidentiality under sections 0.457 and 0.459 of CFR 47. We have requested that the (Block Diagram ,Operational Description,Schematics) required to be submitted with this application be permanently withheld from public review. The above materials contain trade secrets and proprietary information not customarily released to the public. The public disclosure of these materials may be harmful to the applicant and provide unjustified benefits to its competitors. Please contact me if there is any information you may need. Sincerely, suihao pang Manager Foshan Heizuan Trading Co., Ltd One of the first floors of Building A, No. 8, Fengxiugang Industrial Zone, Bichong, Huangqi, Nanhai District, Foshan City

Attestation Statements

(2023-7-13) TO: Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046, USA RE: Attestation Statements Part 2.911(d)(7) request for (GC: 2BB27 )

(Foshan Heizuan Trading Co., Ltd), the undersigned, hereby authorize (VISHTEC LLC) to act as our designated U.S. agent for service of process,(Foshan Heizuan Trading Co., Ltd) 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.

(VISHTEC LLC) accepts the responsibility to act as designated U.S. agent for service of process. Applicant Information Company name: Foshan Heizuan Trading Co., Ltd Contact Name: suihao pang Address: One of the first floors of Building A, No. 8, Fengxiugang Industrial Zone, Bichong, Huangqi, Nanhai District, Foshan City FRN:0033999012 Telephone No: 18520203949 Email: 88007045@qq.com Signature

[suihao pang]

U.S. Agent Information:

Company Name: VISHTEC LLC Address: 9888 W Belleview Ave Ste 2142 Denver CO 80123 FRN: 0033407131 Contact Name: Alan Graham Telephone No: 5714007350 Email: Alan.graham@vish-tec.com Signature

[Alan Graham]