FCC ID: 2APCM-MTTSM01 Intelligent microscope

MATATALAB CO.,LTD

(2023.06.14) 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: Chi Zhang Title: Product Manager

(MATATALAB CO.,LTD)

(Jun. 14, 2023) 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:2APCM-MTTSM01)

[MATATALAB 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) Chi Zhang

(MATATALAB CO.,LTD)

(Jun. 14, 2023) 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:2APCM-MTTSM01)

[MATATALAB 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) Chi Zhang

Beaver Technology (Shenzhen) Co., Ltd. Date: Jun. 14, 2023 Federal Communications Commission To Whom It May Concern:

The letter grants authorization for representative of MATATALAB CO.,LTD to apply the FCC for a change in identification. This authorization applies to Beaver Technology (Shenzhen) Co., Ltd. FCC ID:2A6VM-DDL-M1, granted on 05/17/2022, The equipment is electrically identical. We are aware that MATATALAB CO.,LTD intends to market the above referenced product under FCC ID: 2APCM-MTTSM01 The only changes are applicant name, address, product model, trademark. 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: Simon Fang / Genelal Telephone: 13538218145 Email: fd@dangdangli.com

MATATALAB CO.,LTD Model Difference Data2023.06.14 Product description: Intelligent microscope Model name: M1B, M1C Trade Name:

FCC ID: 2APCM-MTTSM01 All the model are the same circuit and RF module, except model names . Regards Sincerely Clients signature :

Clients name / title : Chi ZhangProduct Manager Contact information / addressNO. 504, Building B, Jianxing Technology Building, Nanshan District, Shenzhen, Guangdong, China

MATATALAB CO.,LTD Date: Jun. 14, 2023 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 MATATALAB CO.,LTD will establish a new FCC ID under FCC ID:2APCM-MTTSM01 for the purpose of marketing. The original grant to Beaver Technology (Shenzhen) Co., Ltd. FCC ID:2A6VM-DDL-M1 will remain in effect. Per 2.933(b) 1) The original identification is FCC ID: 2A6VM-DDL-M1 2) The original grant date is05/17/2022 3) The equipment is electrically and functionally identical. Only the applicant name , address, Product name , label, 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: Chi Zhang / Product Manager Telephone: 13538214502 Email: czhangce@matatalab.com

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(Applicant and U.S. Agent are Separate Parties) Federal Commumcat1ons Comm1ss1on TO:

Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046, USA ATTENTION: FCC Certification -Section 2.911(d)(7) Information Designated U.S. Agent Company Name: AOCE Corporation Inc. FRN: 0033401381 Contact Name: Johnson.wang Address: 654 7 N Academy Bivd #2266, Colorado Springs, C0,80918 United States Telephone No: + 1-346-582-5234 Email: wwbj2008@126.com This letter is to confirm that we ("the Designated U.S. Agent) have accepted the responsibility to act as the Designated U.S. Agent for Service of Process as required by section 47 CFR 2.91 l(d)(7) on behalf of the Applicant noted below. U.S. Agent Signature:

Date:2023-04-17 Signed by (Printed Nameffitle):

The Applicant acknowledges that they must maintain an agent for no less than one year after terminating all marketing and importation OR the conclusion of any Commission-related proceeding involving the equipment. The applicant further acknowledges their responsibility to inform the FCC whenever the Designated U.S. Agent information above changes. Applicant Company name: MATATALAB CO., LTD Grantee Code: 2APCM Contact Name: Chi Zhang Address: No. 504, Building B, Jianxing Technology Building Nanshan District, Shenzhen, Guangdong, China Telephone No: +86 l 526718845 Email: czhangce@matatalab.com FCC ID: 2APCM-MTTSM01 Applicant Signature:

Date: 2023-04-17 Signed by (Printed Nameffitle): Chi Zhang I Product Manager