FCC ID: 2AIL4-PC179A WIRELESS MOUSE

VTIN TECHNOLOGY Co., Limited Agent Authorization Letter

(2018-09-17) MET Laboratories, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 RE: LETTER OF AGENT AUTHORIZATION To Whom It May Concern:

We, the undersigned, hereby authorize (Shenzhen Tongce Testing Lab) 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, Name: Derric Bai Title:N/A Date: 2018.09.17

Eastern Times Technology Co., Ltd. Date: 09/17/2018 Federal Communications Commission To Whom It May Concern:

The letter grants authorization for representative of VTIN TECHNOLOGY Co., Limited to apply the FCC for a change in identification. This authorization applies to Eastern Times Technology Co., Ltd. , FCC ID: TUVDS-2765, granted on 08/28/2018, The equipment is electrically identical. We are aware that VTIN TECHNOLOGY Co., Limited intends to market the above referenced product under FCC ID: 2AIL4-PC179A The only change being the FCC ID and the label on the device. The original test results, technical information and relevant documents continue to be representative of and applicable to the change ID equipment. Should there be any question, please feel free to contact us. Clients signature Clients name / title: Hang Lu/General Manager Telephone: 008676986800666 Email: lh@easterntimes.com.cn

Statement Product: WIRELESS MOUSE Model: PC179A Additional Model: DS-2765, VPTC179AB Trademark : N/A We hereby state that All models above are identical in interior structure, electrical circuits and components, and just model names are different for the marketing requirement. Your assistance on this matter is highly appreciated. Yours sincerely, Signature:

Date: 2018/09/17 NameDerric Bai Company NameVTIN TECHNOLOGY Co., Limited AddressUnit D, 16/F, One Capital Place, 18 Luard Road, Wan Chai, Hong Kong Tel / Fax+860755-26008484/+860755-26008484 E-MailDerric_bai@patazon.net

VTIN TECHNOLOGY Co., Limited Date: 09/17/2018 Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 Subject: Request to change in Identification To Whom It May Concern:

This application for Change of Identification request a new FCC ID as stipulated in 47CFR 2.933(b) for presently authorized equipment. This application by VTIN TECHNOLOGY Co., Limited will establish a new FCC ID under FCC ID: 2AIL4-PC179A for the purpose of marketing. The original grant to TUV FCC ID: TUVDS-2765will remain in effect. Per 2.933(b) 1) The original identification is FCC ID: TUVDS-2765 2) The original grant date is 08/28/2018 3) The equipment is electrically and functionally identical. Only the label, Brand name and FCC ID number are different. 4) The original test results are applicable and representative of this change ID device 5) Exterior photographs are included in this application Clients signature Clients name / title: Derric Bai Telephone: +860755-26008484 Email: Derric_bai@patazon.net