2APN5-MINIZB2GS2-Gang Zigbee Smart Switch

Shenzhen Sonoff Technologies Co.,Ltd. * the applicant must designate a contact located in the United States for purposes of acting as the applicant’s agent for service of process, regardless of whether the applicant is a domestic or foreign entity. An applicant located in the United States may designate itself as the agent for service of process. U.S. Agent Designation for Service of Process - Certification Attestation Letter 7/9/2025 TO: Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 ATTN.: Reviewing Engineer FCC ID: 2APN5-MINIZB2GS FRN of applicant: 0027467786 Per section 2.911(d)(7) of the FCC rules, Shenzhen Sonoff Technologies Co.,Ltd. (“the applicant”) certifies that the equipment for which authorization is sought is designated to the following U.S. agent* for service of process: Company Name: SONOFF TECHNOLOGY LLC FCC Registration Number (FRN): 0035597152 Physical U.S. Company Address: 14777 NE 40th St, Suite 201 Bellevue, WA 98007 Contact Person: KEBIN ZHANG Agent Email Address: [email protected] The above contact person accepts the obligation for service of process. The applicant 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. Applicant Signed: Signed: Printed name: Stan Li Title: Manager Company Name: Shenzhen Sonoff Technologies Co.,Ltd. Date: 7/11/2025 Agent Signed (if different from Applicant): Signed: Printed name: KEBIN ZHANG Title: Manager Company Name: SONOFF TECHNOLOGY LLC Date: 7/11/2025 Shenzhen Sonoff Technologies Co.,Ltd. * the applicant must designate a contact located in the United States for purposes of acting as the applicant’s agent for service of process, regardless of whether the applicant is a domestic or foreign entity. An applicant located in the United States may designate itself as the agent for service of process.

Shenzhen Sonoff Technologies Co.,Ltd. Covered Equipment Certification Attestation Letter 9/8/2025 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA ATTN.: Reviewing Engineer FCC ID: 2APN5-MINIZB2GS 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. Note: If the equipment for which the applicant seeks authorization is produced by any of the entities identified on the current Covered List, the applicant should include an explanation on why the equipment is not “covered” equipment. 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 a specifically named entity or any of its subsidiaries or affiliates) as an entity producing “covered” equipment. Shenzhen Sonoff Technologies Co.,Ltd. (“the applicant”) certifies that the equipment for which authorization is sought does not include cybersecurity or anti-virus software produced or provided by Kaspersky Lab, Inc. or any of its successors and assignees, including equipment with integrated Kaspersky Lab, Inc. (or any of its successors and assignees) cybersecurity or anti-virus software pursuant to DA-24-886 and KDB 986446 D01 Covered Equipment Guidance section B(2a). Signed: Printed name: Stan Li Title: Manager Company Name: Shenzhen Sonoff Technologies Co.,Ltd. Date: 9/8/2025

DATE: 9/3/2025 Federal Communications Commission Authorization & Evaluation Division 7345 Oakland Mills Road Columbia, Maryland 21046 Authority to Act as Agent On our behalf, I appoint CTC Laboratories, Inc. at Room 101 of Building B, Room 107, 108, 207, 208 of Building A, No. 7, Lanqing 1st Road, Luhu Community, Guanhu Subdistrict, Longhua District (Name of Agent company name and address) to act as our agent in the preparation of this application for equipment certification. I certify that submitted documents properly describe the device or system for which equipment certification is sought. I also certify that each unit manufactured, imported or marketed, as defined in the Federal Communications Commission’s regulations will have affixed to it a label identical to that submitted for approval with this application. For instances where our authorized agent signs the application for certification on our behalf, I acknowledge that all responsibility for complying with the terms and conditions for certification, still resides with Shenzhen Sonoff Technologies Co.,Ltd. at 3F&6F , Bid A, International Import Expo Hall, No. 663, Bulong Rd, Longgang Dist Shenzhen Guangdong China (Applicant Name and address) <Signature> Name: Stan Li Title: Manager Applicant Company : Shenzhen Sonoff Technologies Co.,Ltd.

DATE : 2025/09/03 Equipment Autorisation Division Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 FCC ID: 2APN5-MINIZB2GS Product Name: 2-Gang Zigbee Smart Switch Request for Short-Term Confidentiality Pursuant to Sections 0.457 and 0.459 of the commission rules, and in accordance with the FCC Public notice dated June 15, 2004 (DA 04-1705), we hereby request short-term confidentiality for the following items prior to marketing the device.: ⚫ Test Setup Photos ⚫ External Photos ⚫ Internal Photos ⚫ User Manual The applicant requests the exhibits selected above as short term confidential be withheld from public view for a period of 45 days from the date of the Grant of Equipment Authorization and prior to marketing. This is to avoid premature release of sensitive information prior to marketing or release of the product to the public. <Signature> Name：Stan Li Title：Manager Company：Shenzhen Sonoff Technologies Co.,Ltd.

2025/09/08 Equipment Autorisation Division Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 FCC ID: _2APN5-MINIZB2GS Product Name: _ 2-Gang Zigbee Smart Switch _ Request for Confidentiality Pursuant to Sections 0.457 and 0.459 of the commission’s rules, we hereby request that the following documents be held confidential: (List here the documents for which you are seeking confidentiality – for example ...) • Schematics • Block diagram • Operation description • BOM These materials contain trade secrets and proprietary information and are not customarily released to the public. The public disclosure of this information might be harmful to the company and provide unjustified benefits to our competitors. <Signature> Name：Stan Li Title：Manager Company：Shenzhen Sonoff Technologies Co.,Ltd.

CTC Laboratories, Inc. Room 107, 108, 207, 208, 303 of Building A, Room 101 of Building B, No.7, Lanqing 1st Road, Luhu Community, Guanhu Subdistrict, Longhua District, Shenzhen, Guangdong, China Tel.: (86)755-27521059 Fax: (86)755-27521011 Http://www.sz-ctc.org.cn Page 1 of 2 External Photographs Page 2 of 2

CTC Laboratories, Inc. Room 107, 108, 207, 208, 303 of Building A, Room 101 of Building B, No.7, Lanqing 1st Road, Luhu Community, Guanhu Subdistrict, Longhua District, Shenzhen, Guangdong, China Tel: +86-755- 27521059 Fax: +86-755- 27521011 Http://www.sz-ctc.org.cn Page 1 of 1 Label & Label Location Bottom case Face-piece

CTC Laboratories, Inc. Room 107, 108, 207, 208, 303 of Building A, Room 101 of Building B, No.7, Lanqing 1st Road, Luhu Community, Guanhu Subdistrict, Longhua District, Shenzhen, Guangdong, China Tel: +86-755-27521059 Fax: +86-755-27521011 http://www.sz-ctc.org.cn Page 1 of 3 Internal Photographs Page 2 of 3 Page 3 of 3 Antenna

Page 1 of 2 Report No.: CTC2025489404 CTC Laboratories, Inc. Room 101 Building B, No. 7, Lanqing 1st Road, Luhu Community, Guanhu Subdistrict, Longhua District, Shenzhen, Guangdong，China Tel.: (86)755-27521059 Fax: (86)755-27521011 Http://www.sz-ctc.org.cn TRF No：CTC-TR-066_A1 For anti-fake verification, please visit the official website of China Inspection And Testing Society : yz.cnca.cn Maximum Permissible Exposure Evaluation FCC ID: 2APN5-MINIZB2GS According to FCC 1.1310: The criteria listed in the following table shall be used to evaluate the environment impact of human exposure to radio frequency (RF) Radiation as specified in §1.1307(b). EUT Specification Product Name: 2-Gang Zigbee Smart Switch Trade Mark: , SONOFF Model/Type Reference: MINI-ZB2GS Listed Model(s): / Model Differences: / Frequency Band (Operating) Zigbee: 2405MHz ~ 2480MHz Device Category Portable (<5mm separation) Mobile (>20cm separation) Fixed (>20cm separation) Others ___ Exposure Classification Occupational/Controlled exposure (S=5mW/cm 2 ) General Population/Uncontrolled exposure (S=1mW/cm 2 ) Antenna Diversity Single antenna Multiple antennas Tx diversity Rx diversity Tx/Rx diversity Antenna Gain (Max) Zigbee: 2.93dBi BLE:2.93dBi Evaluation Applied MPE Evaluation SAR Evaluation Page 2 of 2 Report No.: CTC2025489404 CTC Laboratories, Inc. Room 101 Building B, No. 7, Lanqing 1st Road, Luhu Community, Guanhu Subdistrict, Longhua District, Shenzhen, Guangdong，China Tel.: (86)755-27521059 Fax: (86)755-27521011 Http://www.sz-ctc.org.cn TRF No：CTC-TR-066_A1 For anti-fake verification, please visit the official website of China Inspection And Testing Society : yz.cnca.cn Limits for Maximum Permissible Exposure (MPE) Frequency Range (MHz) Electric Field Strength (V/m) Magnetic Field Strength (A/m) Power Density (mW/cm 2 ) Averaging Time (minutes) (A) Limits for Occupational/Controlled Exposure 300-1500 -- -- F/300 <6 1500-100000 -- -- 5 <6 (B) Limits for General Population/Uncontrolled Exposure 300-1500 -- -- F/1500 <30 1500-100000 -- -- 1 <30 Calculation Method Friis transmission formula: Pd=(P out *G)/(4*Pi*R 2 ) Where: Pd= Power density in mW/cm 2 P out = output power to antenna in mW G= gain of antenna in linear scale Pi= 3.1416 R= distance between observation point and center of the radiator in cm Pd limit of MPE is 1mW/cm 2 . If we know the maximum gain of the antenna and total power input to the antenna, through the calculation, we will know the distance where the MPE limit is reached. Measurement Result Mode Frequency (MHz) Antenna Gain (dBi) Maximum Power (dBm) Tune Up Tolerance (dB) Max. Tune Up Power (dBm) Power Density at 20cm (mW/cm 2 ) Limit (mW/cm 2 ) Zigbee 2405 2.93 9.09 ±1 10.09 0.0040 1 BLE 2M 2402 2.93 8.12 ±1 9.12 0.0032 1 Note: 1. Calculate in the worst-case mode. 2. Max. Tune Up Power is declared by manufacturer, and used to calculate. 3. For a more detailed features description, please refer to the RF Test Report. **********************THE END**********************

antenna SPECIFICATION Product description: 2.4G Ceramic antenna Uni Link’s part number: RFANT3216120A5T Issue Date: 2018 Note: 2400-2500MHZ 1、（PRODUCT TECHNICAL SPECIFICATION） Electrical Specifications Frequency Range (MHz) 2400-2500 Input Impendence (Ω) 50 V.S.W.R 2 max. Gain (dBi) 2 Polarization Type Linear Power Capacity (w) 3 W max. Mechanical Specifications Antenna Length (mm) 3.20 ± 0.20 mm Radiator ceramics Connect Type PCB patch Working Temp( °C) -40 ̊C ~ +85 ̊C Storage Temperature(°C) +5 ~ +40°C antenna size L3.20mm x W1.6mm x T1.2mm Weight (g) 0.01816 2、PRODUCT PICTURE 3、PRODUCT SPECIFICATION CHART 4、Image of antenna field shape test 5、Antenna Gain

CTC Laboratories, Inc. $CNAS$ CTC Laboratories, Inc. Room 107, 108, 207, 208, 303 of Building A, Room 101 of Building B, No.7, Lanqing 1st Road, Luhu Community, Guanhu Subdistrict, Longhua District, Shenzhen, Guangdong, China Tel.: (86)755-27521059 Fax: (86)755-27521011 Http://www.sz-ctc.org.cn TRF No：CTC-TR-058_A2 For anti-fake verification, please visit the official website of China Inspection And Testing Society : yz.cncaq.com TEST REPORT Report No. .................................... : CTC2025489403 FCC ID ........................................... : 2APN5-MINIZB2GS Applicant ...................................... : Shenzhen Sonoff Technologies Co.,Ltd. Address .......................................... : 3F & 6F, Bldg A, No. 663, Bulong Rd, Shenzhen, Guangdong, China Manufacturer..................................: Shenzhen Sonoff Technologies Co.,Ltd. Address..........................................: 3F & 6F, Bldg A, No. 663, Bulong Rd, Shenzhen, Guangdong, China Product Name .............................. : 2-Gang Zigbee Smart Switch Trade Mark .................................... : , SONOFF Model/Type reference .................... : MINI-ZB2GS Listed Model(s) .............................. : / Standard ....................................... : FCC CFR Title 47 Part 15 Subpart C Section 15.247 Test Report Form No ..................... : CTC-TR-058_A2 Master TRF .................................... : Dated 2025-05-12 Date of receipt of test sample........: Aug. 1, 2025 Date of testing..............................: Aug. 1, 2025 ~ Aug. 22, 2025 Date of issue................................: Sep. 2, 2025 Result............................................: PASS Compiled by: (Printed name+signature) Alicia Liu Supervised by: (Printed name+signature) Eric Zhang Approved by: (Printed name+signature) Totti Zhao $英文检测章$ $Totti$ This test report may be duplicated completely for legal use with the approval of the applicant. It should not be reproduced except in full, without the written approval of our laboratory. The client should not use it to claim product endorsement by CTC. The Test Result in the report only apply to the tested sample. The test report shall be invalid without all the signatures of testing engineers, reviewer and approver. Any objections must be raised to CTC within 15 days since the date when the report is received. It will not be taken into consideration beyond this limit. Page 2 of 62 Report No.: CTC2025489403 CTC Laboratories, Inc. Room 107, 108, 207, 208, 303 of Building A, Room 101 of Building B, No.7, Lanqing 1st Road, Luhu Community, Guanhu Subdistrict, Longhua District, Shenzhen, Guangdong, China Tel.: (86)755-27521059 Fax: (86)755-27521011 Http://www.sz-ctc.org.cn TRF No：CTC-TR-058_A2 For anti-fake verification, please visit the official website of China Inspection And Testing Society : yz.cncaq.com Table of Contents Page 1. TEST SUMMARY ....................................................................................................................................................... 3 1.1. TEST STANDARDS .......................................................................................................................................................... 3 1.2. REPORT VERSION ......................................................................................................................................................... 3 1.3. TEST DESCRIPTION ........................................................................................................................................................ 3 1.4. TEST FACILITY .............................................................................................................................................................. 4 1.5. MEASUREMENT UNCERTAINTY ........................................................................................................................................ 5 1.6. ENVIRONMENTAL CONDITIONS ........................................................................................................................................ 5 2. GENERAL INFORMATION .......................................................................................................................................... 6 2.1. CLIENT INFORMATION ................................................................................................................................................... 6 2.2. GENERAL DESCRIPTION OF EUT ...................................................................................................................................... 6 2.3. ACCESSORY EQUIPMENT INFORMATION ............................................................................................................................ 7 2.4. OPERATION STATE ........................................................................................................................................................ 8 2.5. MEASUREMENT INSTRUMENTS LIST ................................................................................................................................. 9 3. TEST ITEM AND RESULTS ........................................................................................................................................ 11 3.1. CONDUCTED EMISSION................................................................................................................................................ 11 3.2. RADIATED EMISSION ................................................................................................................................................... 14 3.3. BAND EDGE EMISSIONS (RADIATED) .............................................................................................................................. 31 3.4. BAND EDGE AND SPURIOUS EMISSIONS (CONDUCTED) ...................................................................................................... 40 3.5. DTS BANDWIDTH ...............…

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CTC Laboratories, Inc. $CNAS$ CTC Laboratories, Inc. Room 107, 108, 207, 208, 303 of Building A, Room 101 of Building B, No.7, Lanqing 1st Road, Luhu Community, Guanhu Subdistrict, Longhua District, Shenzhen, Guangdong, China Tel.: (86)755-27521059 Fax: (86)755-27521011 Http://www.sz-ctc.org.cn TRF No：CTC-TR-058_A2 For anti-fake verification, please visit the official website of China Inspection And Testing Society : yz.cncaq.com TEST REPORT Report No. .................................... : CTC2025489402 FCC ID ........................................... : 2APN5-MINIZB2GS Applicant ...................................... : Shenzhen Sonoff Technologies Co.,Ltd. Address .......................................... : 3F & 6F, Bldg A, No. 663, Bulong Rd, Shenzhen, Guangdong, China Manufacturer..................................: Shenzhen Sonoff Technologies Co.,Ltd. Address..........................................: 3F & 6F, Bldg A, No. 663, Bulong Rd, Shenzhen, Guangdong, China Product Name .............................. : 2-Gang Zigbee Smart Switch Trade Mark .................................... : , SONOFF Model/Type reference .................... : MINI-ZB2GS Listed Model(s) .............................. : / Standard ....................................... : FCC CFR Title 47 Part 15 Subpart C Section 15.247 Test Report Form No ..................... : CTC-TR-058_A2 Master TRF .................................... : Dated 2025-05-12 Date of receipt of test sample........: Aug. 1, 2025 Date of testing..............................: Aug. 1, 2025 ~ Aug. 22, 2025 Date of issue................................: Sep. 2, 2025 Result............................................: PASS Compiled by: (Printed name+signature) Alicia Liu Supervised by: (Printed name+signature) Eric Zhang Approved by: (Printed name+signature) Totti Zhao $英文检测章$ $Totti$ This test report may be duplicated completely for legal use with the approval of the applicant. It should not be reproduced except in full, without the written approval of our laboratory. The client should not use it to claim product endorsement by CTC. The test result in the report only apply to the tested sample. The test report shall be invalid without all the signatures of testing engineers, reviewer and approver. Any objections must be raised to CTC within 15 days since the date when the report is received. It will not be taken into consideration beyond this limit. Page 2 of 43 Report No.: CTC2025489402 CTC Laboratories, Inc. Room 107, 108, 207, 208, 303 of Building A, Room 101 of Building B, No.7, Lanqing 1st Road, Luhu Community, Guanhu Subdistrict, Longhua District, Shenzhen, Guangdong, China Tel.: (86)755-27521059 Fax: (86)755-27521011 Http://www.sz-ctc.org.cn TRF No：CTC-TR-058_A2 For anti-fake verification, please visit the official website of China Inspection And Testing Society : yz.cncaq.com Table of Contents Page 1. TEST SUMMARY ....................................................................................................................................................... 3 1.1. TEST STANDARDS .......................................................................................................................................................... 3 1.2. REPORT VERSION ......................................................................................................................................................... 3 1.3. TEST DESCRIPTION ........................................................................................................................................................ 3 1.4. TEST FACILITY .............................................................................................................................................................. 4 1.5. MEASUREMENT UNCERTAINTY ........................................................................................................................................ 5 1.6. ENVIRONMENTAL CONDITIONS ........................................................................................................................................ 5 2. GENERAL INFORMATION .......................................................................................................................................... 6 2.1. CLIENT INFORMATION ................................................................................................................................................... 6 2.2. GENERAL DESCRIPTION OF EUT ...................................................................................................................................... 6 2.3. ACCESSORY EQUIPMENT INFORMATION ............................................................................................................................ 7 2.4. OPERATION STATE ........................................................................................................................................................ 8 2.5. MEASUREMENT INSTRUMENTS LIST ................................................................................................................................. 9 3. TEST ITEM AND RESULTS ........................................................................................................................................ 11 3.1. CONDUCTED EMISSION................................................................................................................................................ 11 3.2. RADIATED EMISSION ................................................................................................................................................... 14 3.3. BAND EDGE EMISSIONS (RADIATED) .............................................................................................................................. 25 3.4. BAND EDGE AND SPURIOUS EMISSIONS (CONDUCTED) ...................................................................................................... 30 3.5. DTS BANDWIDTH ...............…

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CTC Laboratories, Inc. Room 107, 108, 207, 208, 303 of Building A, Room 101 of Building B, No.7, Lanqing 1st Road, Luhu Community, Guanhu Subdistrict, Longhua District, Shenzhen, Guangdong, China Tel: +86-755-27521059 Fax: +86-755-27521011 http://www.sz-ctc.org.cn Page 1 of 2 Radiated Measurement 30-1000MHz Above 1GHz Page 2 of 2 Conducted Measurement