FCC ID: 2BFVS-H8 Wireless intercom caller

Dongguan Haoyijia Intelligent Technology Co., Ltd

(April 15, 2024) 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 (Shenzhen CTB 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, Signature:

Name: zhou xiaoka Title: General Manager

(Dongguan Haoyijia Intelligent Technology Co., Ltd)

(April 15, 2024) 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: 2BFVS-H8)

[Dongguan Haoyijia Intelligent Technology 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,

(Applicant signature)

(Applicant printed name) zhou xiaoka

(Dongguan Haoyijia Intelligent Technology Co., Ltd)

(April 15, 2024) 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: 2BFVS-H8)

[Dongguan Haoyijia Intelligent Technology 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,

(Applicant signature)

(Applicant printed name) zhou xiaoka

Dongguan Haoyijia Intelligent Technology Co., Ltd

(April 15, 2024) Eurofins Electrical and Electronic Testing NA, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 RE: CONFIDENTIALITY REQUEST FOR (Wireless intercom caller / H8, H8S, H8U / FCC ID: 2BFVS-H8) 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 Exhibits ID Label/Location Attestation Statement External Photos Block Diagram Schematics Test Report Test Setup Photos Users Manual Internal Photos Parts List / Tune Up RF Exposure Info Operational Description Cover Letter(s) SDR Software / Security Info Long-Term Confidentiality Short-Term Confidentiality NOTE 2 No No No No No NOTE 1 NOTE 1 No No No No No No No No required to be submitted with this application be permanently withheld from public review. Above mentioned document contains detailed system and equipment description are considered as proprietary information in operation of the equipment. The public disclosure of above documents might be harmful to our company and would give competitor an unfair advantage in the market. Please contact me if there is any information you may need. Sincerely, Signature:

Name: zhou xiaoka Title: General Manager

Dongguan Haoyijia Intelligent Technology Co., Ltd DataApril 15, 2024 Model Difference Product description: Wireless intercom caller Model name: H8, H8S, H8U Trade Name:

FCC ID: 2BFVS-H8 All the model are the same circuit and RF module, except model names . Regards Sincerely Clients signature :

Clients name / title : zhou xiaokaGeneral Manager Contact information / addressRoom 204, No. 129 Changdong Road, Changping Town, Dongguan City, Guangdong Province, China

Attestation Statements

(April 15, 2024) 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 (FCC ID: 2BFVS-H8 )

(Dongguan Haoyijia Intelligent Technology Co., Ltd), the undersigned, hereby authorize

(NEWENERGYER LIMITED) to act as our designated U.S. agent for service of process,

(Dongguan Haoyijia Intelligent Technology 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.

(NEWENERGYER LIMITED) accepts the responsibility to act as designated U.S. agent for service of process, provides 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. Applicant Information Company name: Dongguan Haoyijia Intelligent Technology Co., Ltd Contact Name: zhou xiaoka Address: Room 204, No. 129 Changdong Road, Changping Town, Dongguan City, Guangdong Province, China Telephone No: 13538214502 Email: 1484036285@qq.com FRN: 0035289875 Signature [zhou xiaoka]

U.S. Agent Information:

Company Name: NEWENERGYER LIMITED Address: 1818 S Patton Ct, Denver, CO, 80219 Contact Name: CHUN LIU Telephone No: 213 289 5042 Email: newenergyer@outlook.com FRN: 0034665885 Signature [CHUN LIU]