FCC ID: 2AHFT544 Smart Watch

GTX09 FCC ID:2 A H F T 5 4 4 I C

2 3 0 2 3-2 A HFT544 G T X 0 9 3X10.4mm 7X5mm 7X5mm 5.5X2.8mm 5X5mm

Date2024-3-15 Shenzhen DO Intelligent Technology Co., Ltd Product Model Number:GTX09 FCC ID2AHFT544 To whom it may concern, Re: Product Certification Representative Authorization Letter We authorize QAI Laboratories Ltd. 3980 North Fraser Way, Burnaby B.C. Canada V5J 5K5 to act on our behalf on all matters concerning the above named equipment. This shall include the following:

Testing Approval applications and procedures We declare that ORGANIZATION. is allowed to forward all information related to the approval project to the applied certification body and to the notification entities and to discuss any issues concerning the approval application. Any and all acts carried out by ORGANIZATION. on our behalf shall have the same effect as acts of our own. By: Wu Dajun Contact Listed on FCC Wesbite Title: General Manager Email: wudj@idoosmart.com Telephone: 0755-82529675 On behalf of: Shenzhen DO Intelligent Technology Co., Ltd Effective Date: April 2, 2020 Revision Date:

QSF 7.6.4-8 Agent Authorization Letter Template Revision: 0 Page 1 of 1

Shenzhen DO Intelligent Technology Co., Ltd Address11th Floor, 3# Building, Guole Tech Park, Lirong Road, Dalang, Longhua District, Shenzhen, China FRN: 0025289893 Date: 2024-03-20 Federal Communications Commission Authorization and Evaluation Division 1435 Oakland Mills Road Columbia, MD 21046 Ref: Attestation Statements Part 2.911(d)(7) Filing SUBJECT: FCC Application for FCC ID:2AHFT544 Shenzhen DO Intelligent Technology Co., Ltd certifies that, as of the date of the filing of the application, Cleveland International Trade Agency. is our designated U.S. agent for service of process for the above referenced FCC ID. Shenzhen DO 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. Cleveland International Trade Agency 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:

Name: Cleveland International Trade Agency Address: 4033 ST Clair Ave, Cleveland, OH 44103, USA FRN: 0033401837 Contact Person: Becky Deng Tel.: 216-600-0606 Email: Georgewu7012@gmail.com Sincerely, Signed on behalf of Shenzhen DO Intelligent Technology Co., Ltd Signed on behalf of Cleveland International Trade Agency signature Name: Wu Dajun signature Name: Becky Deng Title: General manager Title: Manager Date: 2024-3-1 5 2024-3-20

Shenzhen DO Intelligent Technology Co., Ltd Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA Date: 2024-3-15 FCC ID: 2AHFT544 Ref. #1: Attestation Statements Part 2.911(d)(5)(i) Filing Shenzhen DO Intelligent Technology Co., Ltd 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. Ref. #2: Attestation Statements Part 2.911(d)(5)(ii) Filing Shenzhen DO Intelligent Technology Co., Ltd 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. Applicant: Shenzhen DO Intelligent Technology Co., Ltd Address: 11th Floor, 3# Building, Guole Tech Park, Lirong Road, Dalang, Longhua District, Shenzhen, China Contact Person: Wu Dajun Tel.: 0755-82529675 Email: wudj@idoosmart.com Sincerely, Signature:

Shenzhen DO Intelligent Technology Co., Ltd Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 USA Subject; Request for Confidentiality FCC ID: 2AHFT544 Date: March 20, 2024 To Whom It May Concern, Pursuant to the provisions of the Commissions rules Title 47 Sections 0.457 and 0.459, we are requesting the Commission to withhold the following attachment(s) as confidential documents from public disclosure indefinitely. These documents contain detailed system and equipment descriptions and are considered as proprietary information in operation of the equipment. The public disclosure of these documents might be harmful to our company and would give competitors an unfair advantage in the market. Schematic Diagram Block Diagram Operational Description In additional to above mentioned documents, in order to comply with the marketing regulations in Title 47 CFR 2.803 and the importation rules in Title 47 CFR 2.1204, while ensuring that business sensitive information remains confidential until the actual marketing of newly authorized devices, we request Short Term Confidentiality of the following attachment(s);

External Photos Test Setup Photos Internal Photos User Manual For 45 days, pursuant to Public Notice DA 04-1705. OR For 180 days pursuant to KDB 726920 D01. It is our understanding that all measurement test reports, FCC ID label format and correspondence during the certification review process cannot be granted as confidential documents and this information will be available for public review once the grant of equipment authorization is issued. Sincerely, Signature:

Name:Wu Dajun Title:General Manager