FCC ID: 2APN5BASICR4 Wi-Fi Smart Switch with WiFi and Bluetooth

Shenzhen Sonoff Technologies Co.,Ltd. PHOENIX TESTLAB GmbH Product Certification Knigswinkel 10 D 32825 Blomberg Date: 21 August 2023 RE : LETTER OF AGENCY AUTHORIZATION To Whom It May Concern:

We, the undersigned, hereby authorize (CTC Laboratories, Inc.) 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 certify that we are not subject to denial of federal benefits, that includes FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse ACT of 1988, U.S.C.862. Further, no party, as defined in 47 CFR 1.2002 (b), to the application is subject to denial of federal benefits, that includes FCC benefits. This agreement is valid for one year 2023.8.21 until further notice. If you have any questions, please feel free to contact me Yours sincerely, Signature:

Contact Name: Freddie Duan Title: Manager Contact Email: cert@itead.cc Contact Phone: 0755-29610458

Shenzhen Sonoff Technologies Co.,Ltd. Long/Short-term Confidentiality Request Date: 21 August 2023 PHOENIX TESTLAB GmbH Product Certification Knigswinkel 10 D 32825 Blomberg FCC ID: 2APN5BASICR4 To Whom It May Concerns, Pursuant to sections 0.457(d) and 0.459 of CFR 47 and to avoid premature release of sensitive information prior to marketing or release of the product to the public, we hereby request long-term confidential treatment of information accompanying this application as outlined below:

Schematics Block Diagram Operational Description Parts List Tune-Up Info In addition we hereby request the following exhibits contained in this application to be temporarily (short-term confidentiality) withheld from the public disclosure for an initial period of applicable until:

not days External Photos Internal Photos Test Setup Photos Users Manual The above materials contain trade secrets and proprietary information not customarily released to the public. The public disclosure of these matters might be harmful to the applicant and provide unjustified benefits to its competitors. The applicant understands that pursuant to rule 0.457(d), disclosure of this application and all accompanying documentation will not be made before the date of the GRANT for this application. If you have any questions, please feel free to contact me. Yours sincerely, Signature:

Contact Name: Freddie Duan Title: Manager Contact Email: cert@itead.cc Contact Phone: 0755-29610458

Shenzhen Sonoff Technologies Co., Ltd. ADD: 3F & 6F, Bldg A, No. 663, Bulong Rd, Shenzhen, Guangdong, China TEL: +86-0755-27955416 FAX: +86-0755-27955416 Mail: cert@itead.cc DECLARATION OF SIMILARITY Date2023-8-22 To Whom It May Concern Dear Sir or Madam:

We, Shenzhen Sonoff Technologies Co.,Ltd., hereby declare that product: Wi-Fi Smart Switch, The model BASICR4M and BASICR4 which were tested by CTC Laboratories, Inc. with the same electromagnetic emissions and electromagnetic compatibility characteristics. All these models are identical in the same PCB, layout, electrical circuit and enclosure. The difference is the model name, and the model BASICR4M supports the Matter function. The following is a description of the differences and declaration similarities between several configurations. Model Relay PCB Board Power supply board RF&Control Board BASICR4M, BASICR4 Relay BASICR4M, BASICR4 Alt ManufacturerZhejiang Fanhar Electronics Co., Ltd ModelW14-1AST-DC5V Load: 10A 250VAC ManufacturerDongguan Golden Electrical Appliance Co Ltd ModelGH-1A-5L Load: 10A 250VAC same Except the differences above, we declare the products are electrically identical. We guarantee all the information provided above is true, and notice that well bear all the consequences caused by any false information or concealing. Please contact me should there be need for any additional clarification or information. Best Regards, Signature Name: Freddie Duan Manager

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Shenzhen Sonoff Technologies Co.,Ltd. PHOENIX TESTLAB GmbH Product Certification Department Koenigswinkel 10 32825 Blomberg Germany Date: 2023.8.21 Attestation Section 2.911(d)(5)(ii), Section 2.911(d)(5)(i)

(KDB 986446 D01 Covered Equipment) Shenzhen Sonoff Technologies 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. Shenzhen Sonoff Technologies 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. Type of Equipment subject to FCC Certification:

FCC ID:

2APN5BASICR4 If you have any questions, please feel free to contact me Signature:

Name: Freddie Duan Company: Shenzhen Sonoff Technologies Co.,Ltd. Address: 3F & 6F, Bldg A, No. 663, Bulong Rd, Shenzhen, Guangdong, China Phone: 0755-29610458 Fax: 0755-27955416 Email: cert@itead.cc

Shenzhen Sonoff Technologies Co.,Ltd. Certification Designating a U.S. Agent for Service of Process Date: 2023.8.21 Ref: Section 2.911(d)(7) filing FCC ID: 2APN5BASICR4 To: Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 USA Shenzhen Sonoff Technologies Co.,Ltd. (the applicant) as required by section 2.911(d)(7), will also serve as the agent for service of process for the above referenced FCC ID. The applicant acknowledges that they will 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. The applicant further acknowledges their responsibility to inform the FCC whenever the agent information changes. Federal Registration Number (FRN): 0033682634 Company Name: ITEAD,LLC Company Address: 651 N Broad St, Suite 201 Middletown, DE 19709 United States Contact Person: Felix Li Email: usrep@itead.cc Sincerely yours, Signature:

Signature:

Name: Freddie Duan Name: Felix Li Company: Shenzhen Sonoff Technologies Co.,Ltd. Company: ITEAD,LLC Phone: 0755-29610458 Fax: 0755-27955416 E-Mail: cert@itead.cc Phone: (925) 237-1624 E-Mail: usrep@itead.cc

Shenzhen Sonoff Technologies Co.,Ltd. Suppliers Declaration Of Conformity for the FCC SDoC Procedure The following Equipment adapt FCC SDoC Procedure according to FCC part 2.906 :

Product Name: ____Wi-Fi Smart Switch_____ Brand Name: ______Sonoff___________________ Model Number: ______BASICR4, BASICR4M_____________ Report Number: _CTC20231627E01, CTC20231627E02, CTC20231627E03____ Its herewith confirmed to comply with the requirements of FCC Part 15 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. It is understood that each unit marketed is identical to the device as tested, and any changes to the device that could adversely affect the emission characteristics will require retest. The following importer / responsible party in United States:

Not Available at Certification Stage Company Name: Shenzhen Sonoff Technologies Co.,Ltd. Company Address: 3F & 6F, Bldg A, No. 663, Bulong Rd, Shenzhen, Guangdong, China Telephone: 0755-29610458 Fax: /

Person is responsible for marking this declaration:

___Freddie Duan__________ Name (Full name ) _______Manager______ Position / Title __________________________ Legal Signature _____2023.8.21__________ Date