FCC ID: 2AX4Y-T20ULTRA Tablet

DOIGEE Model: T20 Ultra QAM ON 100 0 IMEI-1:35158839XXXXXXX IMEI-2:3515883 9XXXXXXX VINER TEA A 0 TA S/N:T20ULTRAOO000000001 ADF 250016 210 SE (B 210-207905 C RoHS &

MADE IN CHINA RT :40x26mm

Shenzhen DOOGEE Hengtong Technology CO.,LTD Agent Authorization Letter

(2023-10-26) 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 NTEK Testing Technology Co., Ltd. 1/F, Building E, Fenda Science Park Sanwei, Xixiang, Bao'an District, Shenzhen, Guangdong, China Alex.li alex.li@ntek.org.cn 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, Chang Cheng / Manager Date/City:

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2023-10-26 / Shenzhen 0755-27850209 0755-27850209 cheng.chang@doogee.cc

(Shenzhen DOOGEE Hengtong Technology CO.,LTD)

(2023.10.26) 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: 2AX4Y-T20ULTRA)

[Shenzhen DOOGEE Hengtong 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, Chang Cheng

(DOKE COMMUNICATION (HK) LIMITED)

(2023.10.26) 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: 2AX4Y-T20ULTRA)

[Shenzhen DOOGEE Hengtong 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, Chang Cheng

DOKE COMMUNICATION (HK) LIMITED Family models difference declaration Tablet Model: T20Ultra, T20Ultra Pro,T20Ultra Plus,T20Ultra Max Difference declaration:

All the model are the same circuit and RF module, except the model names. Regards, Signature Chang Cheng / Manager Date/City:

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2023-11-02 / Shenzhen 0755-27850209 0755-27850209 cheng.chang@doogee.cc

Shenzhen DOOGEE Hengtong Technology CO.,LTD Long Term Confidentiality Request Letter

(2023-10-26) Eurofins Electrical and Electronic Testing NA, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 RE: CONFIDENTIALITY REQUEST FOR Product: Tablet Model No.: T20Ultra, T20Ultra Pro, T20Ultra Plus, T20Ultra Max FCC ID: 2AX4Y-T20ULTRA 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 Schematic Diagram Block Diagram Operational Description Software Security Requirements for UNII devices Tune up procedure 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. It is our understanding that all measurement test reports, FCC ID label format and correspondent during certification review process cannot be granted as confidential documents and those information will be available for public review once the grant of equipment authorization is issued. Please contact me if there is any information you may need. Sincerely, Chang Cheng / Manager Date/City:

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2023-10-26 / Shenzhen 0755-27850209 0755-27850209 cheng.chang@doogee.cc

SHENZHEN DOOGEE HENGTONG TECHNOLOGY CO.,LTD Short Term Confidentiality Request Letter

(2023-10-26) Eurofins Electrical and Electronic Testing NA, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 RE: Short Term Confidentiality Request For Product: Tablet Model No.: T20Ultra, T20Ultra Pro, T20Ultra Plus, T20Ultra Max FCC ID: 2AX4Y-T20ULTRA To Whom It May Concern:

In accordance with sections 0.457 and 0.459 of CFR 47, <SHENZHEN DOOGEE HENGTONG TECHNOLOGY CO.,LTD>. requests short-term Confidentiality of following sections of this application for a period of 180 days after grant is issued. Test setup photos Internal photos External Photo Users manual These documents contain detailed system and equipment descriptions and related information about the product, which <SHENZHEN DOOGEE HENGTONG TECHNOLOGY CO.,LTD> considers to be proprietary, confidential, and a custom design and otherwise, would not release to the general public. Since this design is a basis from which future technological products will evolve, <SHENZHEN DOOGEE HENGTONG TECHNOLOGY CO.,LTD> feels that this information would be of benefit to its competitors, and that the disclosure of the information in these documents would give our competitors an unfair advantage in the market. Please contact me if there is any information you may need. Sincerely, Chang Cheng / Manager Date/City:

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2023-10-26 / Shenzhen 0755-27850209 0755-27850209 cheng.chang@doogee.cc

THREE STONES MEDIA LLC U.S. Agent Letter of Attestation To: Federal Communications Commission Date: 10/16/2023 7435 Oakland Mills Road, Columbia, MD 21046, USA Ref: Attestation Statement Part2.911(d)(7) filing FCC ID : 2AX4Y-T20ULTRA Shenzhen DOOGEE Hengtong Technology CO.,LTD (the applicant) certifies that, as of the date of the filing of the application, THREE STONES MEDIA LLC(the agent) is our designated U.S. agent for service of process for the abovereference FCC ID. The applicant accepts to maintain an agent for service of process in the United States forno less than one year after either the grantee has permanently terminated all marketing and importation of theapplicable equipment within the U.S., or the conclusion of any Commission-related administrative or judicialproceeding involving the equipment, whichever is later. The applicant further acknowledges it is ourresponsibility to inform the FCC whenever the agent information changes. THREE STONES MEDIA LLC ("the agent) understand it is the agent's obligation to accept service of process in the United States for matters related to the applicable equipment, and at the physical U.S. address and email address. Designated U.S. Agent Company Name:

THREE STONES MEDIA LLC FRN: 0033401761 GC: 2A99E Address: Signature:

1200 Broadway St. APT 329, Los Angeles, CA90015 Contact Person: Sijie Zhang Tel: +1 267 909 3692 Email: abbyzhangmedia@gmail.com Applicant Company Name:

Shenzhen DOOGEE Hengtong Technology CO.,LTD Address: Signature: 4 B, 2/F, Building A4, Silicon Valley Power Digital dss nf Industrial Park, No. 22, Dafu Industrial Zone, Guanlan Aobei Community, Guanlan Street, Longhua New District, Shenzhen, Guangdong China Contact Person: Cheng Chang Email: cheng.chang@doogee.cc FRN: 0032614604 GC: 2AX4Y Tel: +380634164242