FCC ID: 2A6P9-ADF-777 AutoSky Digital Photo Frame

Promaster Electronic LLC FCC ID: 2A6P9-ADF-777 Product Name: AutoSky Digital Photo Frame Input: 100-240V-50/60Hz 0.35A Output: 5V=-2.0A This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions:(1) This device may not cause harmful interference, and (2) This device must accept any interference received, including interference that may cause undesired operation

Promaster Electronic LLC

(2023.04.18) 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: Antonio Lopez Title: President

(Promaster Electronic LLC)

(Apr. 18, 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 (2A6P9-ADF-777)

[Promaster Electronic LLC] (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) Antonio Lopez

(Promaster Electronic LLC)

(Apr. 18, 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 (2A6P9-ADF-777)

[Promaster Electronic LLC] (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) Antonio Lopez

Shenzhen Joyhong Technology Co.LTD. Date: Apr. 18, 2023 Federal Communications Commission To Whom It May Concern:

The letter grants authorization for representative of Promaster Electronic LLC to apply the FCC for a change in identification. This authorization applies to Shenzhen Joyhong Technology Co.LTD. FCC ID:2AZ5K-JT101F, granted on 06/23/2021, The equipment is electrically identical. We are aware that Promaster Electronic LLC intends to market the above referenced product under FCC ID: 2A6P9-ADF-777 The only changes are the applicant's company name, address, product name, trademark, and model. 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: Lory Wu / V Telephone: 13538218145 Email:

lory@joyhong.com

< Promaster Electronic LLC >

C5266091_X4_Ed.1 Subject:

Request for 2.933 Change in identification of equipment Date: Apr. 18, 2023 Reference:

FCC ID: 2A6P9-ADF-777 Gentlemen, Promaster Electronic LLC requests a Change in Identification for a currently approved device. This application will establish a new FCC ID for purpose of marketing. The original Grant for Shenzhen Joyhong Technology Co.LTD. under FCC ID: 2AZ5K-JT101F with a Grant Date of 06/23/2021 will remain in effect. An authorization letter from the original Grantee is attached. We attest that the equipment is electrically identical. Only the model name, trade name, and FCC ID are different. The original test results are applicable and continue to be representative of this device. The following files are provided as attachments:

Cover letter giving permission from original Applicant for Change in ID External photos showing no physical changes to this device New FCC identification label and its location. Thanks and Best Regards, New Grantee Signature:

New Applicant Company: Promaster Electronic LLC New Applicant Address: 25511 Budde Rd, Suite 1602, The Woodlands, Texas, 77380. USA New Applicant phone: 13538214502 New Applicant Email: admin@promasterelectronic.com 1/1

Promaster Electronic LLC

(2023.04.18) Eurofins Electrical and Electronic Testing NA, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 RE: CONFIDENTIALITY REQUEST FOR (AutoSky Digital Photo Frame / ADF-777

/ FCC ID: 2A6P9-ADF-777) 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 No No No No No NOTE 1 NOTE 1 No No Short-Term Confidentiality NOTE 2 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: Antonio Lopez Title: President

Date: Apr. 18, 2023 Promaster Electronic LLC 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 Promaster Electronic LLC will establish a new FCC ID under FCC ID:2A6P9-ADF-777 for the purpose of marketing. The original grant to Shenzhen Joyhong Technology Co.LTD. FCC ID: 2AZ5K-JT101F will remain in effect. Per 2.933(b) 1) The original identification is FCC ID: 2AZ5K-JT101F 2) The original grant date is06/23/2022 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: Antonio Lopez / President Telephone: 13538214502 Email: admin@promasterelectronic.com

Attestation Statements

(Apr. 18, 2023) 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

(Promaster Electronic LLC), the undersigned, hereby authorize (Promaster Electronic LLC) to act as our designated U.S. agent for service of process, (Promaster Electronic LLC) 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.

(Promaster Electronic LLC) 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: Promaster Electronic LLC Contact Name: Antonio Lopez Address: 25511 Budde Rd, Suite 1602, The Woodlands, Texas, 77380. USA Telephone No: 13538214502 Email: admin@promasterelectronic.com U.S. Agent Information:

Company Name: Promaster Electronic LLC Address: 25511 Budde Rd, Suite 1602, The Woodlands, Texas, 77380. USA Contact Name: Antonio Lopez Telephone No: 13538214502 Email: admin@promasterelectronic.com FRN: 0032356586 Applicant Signature:

Agent Signature:

Applicant printed name: Antonio Lopez Agent printed name: Antonio Lopez