FCC ID: 2BFHE-M603 4G Mobile Wifi

Hunan Danuo Technology Co., Ltd.

(2024.03.20) 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: Xu Qingqing Title: Manager

(Hunan Danuo Technology Co., Ltd.)

(March 20, 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: 2BFHE-M603)

[Hunan Danuo 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) Xu Qingqing

(Hunan Danuo Technology Co., Ltd.)

(March 20, 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: 2BFHE-M603)

[Hunan Danuo 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) Xu Qingqing

Hunan Danuo Technology Co., Ltd.

(2024.03.20) Eurofins Electrical and Electronic Testing NA, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 RE: CONFIDENTIALITY REQUEST FOR (4G Mobile Wifi / M603, M603H, MF523E, M232, MF56, MF21, D21 / FCC ID: 2BFHE-M603) 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: Xu Qingqing Title: Manager

Hunan Danuo Technology Co., Ltd. DataMarch 20, 2024 Model Difference Product description: 4G Mobile Wifi Model name: M603, M603H, MF523E, M232, MF56, MF21, D21 Trade Name: N/A FCC ID: 2BFHE-M603 All the model are the same circuit and RF module, except model names . Regards Sincerely Clients signature :

Clients name / title : Xu QingqingManager Contact information / addressXiangnan International Logistics Park, Building B7, No.89, Guo Qing South Road, Beihu District, Chenzhou City, Hunan Province.

Attestation Statements

(March 20, 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: 2BFHE-M603 )

(Hunan Danuo Technology Co., Ltd.), the undersigned, hereby authorize

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

(Hunan Danuo 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: Hunan Danuo Technology Co., Ltd. Contact Name: Xu Qingqing Address: Xiangnan International Logistics Park, Building B7, No.89, Guo Qing South Road, Beihu District, Chenzhou City, Hunan Province. Telephone No: 13538214502 Email: Vic@opuor.com.cn FRN: 0035143643 Signature [Xu Qingqing]

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]