2APN5AIBRIDGESmart Home Hub

QA-FR-171 -A

EXHIBIT B - EUT EXTERNAL PHOTOGRAPHS Model: AIBridge Model: AIBridge-26

9.10 mm 92.49 mm AUTO AUTO 22.44 mm 104.20 mm 5.18 mm 7.05 mm 9.10 mm 92.49 mm Model: AIBridge-26 Input : 5V 2A FCC ID :2APN5AIBRIDGE MADE IN CHINA 101.20 mm 22.44 mm 104.20 mm 5.18 mm 7.05 mm CPU: Rv1126, RAM: 4GB Model: AIBridge-26 Input : 5V 2A FCC ID :2APN5AIBRIDGE CPU: Rv1126, RAM: 4GB MADE IN CHINA Wireless connections: Zigbee 3.0 HVIN: AIBRIDGE26 IC: 29127-AIBRIDGE Wireless connections: Zigbee 3.0 HVIN: AIBRIDGE26 IC: 29127-AIBRIDGE

EXHIBIT B - EUT EXTERNAL PHOTOGRAPHS Model: AIBridge Model: AIBridge-26 Zigbee Antenna Zigbee Antenna BLE/WiFi Antenna BLE/WiFi Antenna Zigbee chip chip BLT/WiFi chip BLT/WiFi chip Core Board Core Board U16 U14

China Certification ICT Co., Ltd (Dongguan) Report No.: CR221264420-00B Page 55 of 59 5. RF EXPOSURE EVALUATION 5.1 RF Exposure Evaluation - MPE-Based Exemption 5.1.1 Applicable Standard FCC §15.247 (i) Systems operating under the provisions of this section shall be operated in a manner that ensures that the public is not exposed to radio frequency energy levels in excess of the Commission's guidelines. See §1.1307(b)(1) of this chapter. 5.1.2 Procedure According to §1.1307(b)(3)(ii)(B) Simultaneous Transmission with both SAR-based and MPE-Based Test Exemptions This case is described in detail in § 1.1307(b)(3)(ii)(B) and covers the situations where both SAR-based and MPE-based exemption may be considered for test exemption in fixed, mobile, or portable device exposure conditions. For these cases, a device with multiple RF sources transmitting simultaneously will be considered an RF exempt device if the condition of Formula (1) is satisfied. Table 1 to § 1.1307(b)(3)(i)(C) - Single RF Sources Subject to Routine Environmental Evaluation RF Source frequency (MHz) Threshold ERP (watts) 0.3-1.34 1,920 R 2 . 1.34-30 3,450 R 2 /f 2 . 30-300 3.83 R 2 . 300-1,500 0.0128 R 2 f. 1,500-100,000 19.2R 2 . China Certification ICT Co., Ltd (Dongguan) Report No.: CR221264420-00B Page 56 of 59 China Certification ICT Co., Ltd (Dongguan) Report No.: CR221264420-00B Page 57 of 59 5.1.3 Measurement Result Radio Frequency (MHz) λ/2 Π (mm) Distance (mm) Exemption ERP (mW) Maximum Conducted Power including Tune-up Tolerance (dBm) Antenna Gain (dBi) ERP dBmmW WiFi 2412-2462 19.80 200 768 15 2.07 14.92 31.05 BLE 2402-2480 19.88 200 768 5 2.07 4.92 3.10 ZigBee 2405-2480 19.85 200 768 12 2.38 12.23 16.71 Note: 1. The Value of Maximum Conducted Power including Tune-up Tolerance was declared by the customer. 2. The WiFi or BLE and ZigBee can transmit simultaneously. =ERP WiFi / ERP th + ERP ZigBee / ERP th =31.05/768 + 16.71/768 =0.622 < 1.0 Result: The device compliant the MPE-Based Exemption at 20cm distances.

China Certification ICT Co., Ltd (Dongguan) Report No.: CR221264420-00A Page 67 of 71 5. RF EXPOSURE EVALUATION 5.1 RF Exposure Evaluation - MPE-Based Exemption 5.1.1 Applicable Standard FCC §15.247 (i) Systems operating under the provisions of this section shall be operated in a manner that ensures that the public is not exposed to radio frequency energy levels in excess of the Commission's guidelines. See §1.1307(b)(1) of this chapter. 5.1.2 Procedure According to §1.1307(b)(3)(ii)(B) Simultaneous Transmission with both SAR-based and MPE-Based Test Exemptions This case is described in detail in § 1.1307(b)(3)(ii)(B) and covers the situations where both SAR-based and MPE-based exemption may be considered for test exemption in fixed, mobile, or portable device exposure conditions. For these cases, a device with multiple RF sources transmitting simultaneously will be considered an RF exempt device if the condition of Formula (1) is satisfied. Table 1 to § 1.1307(b)(3)(i)(C) - Single RF Sources Subject to Routine Environmental Evaluation RF Source frequency (MHz) Threshold ERP (watts) 0.3-1.34 1,920 R 2 . 1.34-30 3,450 R 2 /f 2 . 30-300 3.83 R 2 . 300-1,500 0.0128 R 2 f. 1,500-100,000 19.2R 2 . China Certification ICT Co., Ltd (Dongguan) Report No.: CR221264420-00A Page 68 of 71 China Certification ICT Co., Ltd (Dongguan) Report No.: CR221264420-00A Page 69 of 71 5.1.3 Measurement Result Radio Frequency (MHz) λ/2 Π (mm) Distance (mm) Exemption ERP (mW) Maximum Conducted Power including Tune-up Tolerance (dBm) Antenna Gain (dBi) ERP dBmmW WiFi 2412-2462 19.80 200 768 15 2.07 14.92 31.05 BLE 2402-2480 19.88 200 768 5 2.07 4.92 3.10 ZigBee 2405-2480 19.85 200 768 12 2.38 12.23 16.71 Note: 1. The Value of Maximum Conducted Power including Tune-up Tolerance was declared by the customer. 2. The WiFi or BLE and ZigBee can transmit simultaneously. =ERP WiFi / ERP th + ERP ZigBee / ERP th =31.05/768 + 16.71/768 =0.622 < 1.0 Result: The device compliant the MPE-Based Exemption at 20cm distances.

antenna SPECIFICATION Product description: 2.4G FPC Antenna Uni Link’s part number: GDT -SL--50 Issue Date: 2 022- 09-27 Note: 2 400-2500MHZ Manufacturer: Shenzhen Guandetong Electronic Co., Ltd. Address: No. 301, 1# Road，Xiawei Industrial Area, Zhangkengjing Community, Guanhu Street, Longhua Distric, Shenzhen 1、（PRODUCT TECHNICAL SPECIFICATION） Electrical Specifications Frequency Range (MHz)2400-2500 Input Impendence (Ω)50 V.S.W.R≤2 Gain (dBi)2.07 Polarization TypeHorizontal Power Capacity (w)50 Mechanical Specifications Antenna Length (mm)mm RadiatorCuprum Connect Type IPEX 1 Working Temp( °C) -10~40 Storage Temperature(°C) -4 0~85 antenna size 21.5mmx17mm 2、PRODUCT PICTURE 3、PRODUCT SPECIFICATION CHART 4、Antenna Gain

antenna SPECIFICATION Product description: 2.4G FPC Antenna Uni Link’s part number: GDT -AZ-DP-50 Issue Date: 2 022- 07-01 Note: 2 400-2500MHZ Manufacturer: Shenzhen Guandetong Electronic Co., Ltd. Address: No. 301, 1# Road，Xiawei Industrial Area, Zhangkengjing Community, Guanhu Street, Longhua Distric, Shenzhen 1、（PRODUCT TECHNICAL SPECIFICATION） Electrical Specifications Frequency Range (MHz)2400-2500 Input Impendence (Ω)50 V.S.W.R≤2 Gain (dBi)2.38 Polarization TypeHorizontal Power Capacity (w)50 Mechanical Specifications Antenna Length (mm)mm RadiatorCuprum Connect Type IPEX 1 Working Temp( °C) -10~40 Storage Temperature(°C) -4 0~85 antenna size 24mmx 9mm 2、PRODUCT PICTURE 3、PRODUCT SPECIFICATION CHART 4、Antenna Gain

TEST REPORT Applicant: Shenzhen Sonoff Technologies Co.,Ltd. Address: 3F & 6F, Bldg A, No. 663, Bulong Rd, Shenzhen, Guangdong, China FCC ID: 2APN5AIBRIDGE IC: 29127-AIBRIDGE HVIN: AIBRIDGE, AIBRIDGE26 Product Name: Smart Home Hub Standard(s): 47 CFR Part 15, Subpart C(15.247) RSS-247 Issue 2, February 2017 RSS-Gen, Issue 5, February 2021 Amendment 2 ANSI C63.10-2013 KDB 558074 D01 15.247 Meas Guidance v05r02 The above equipment has been tested and found compliant with the requirement of the relative standards by China Certification ICT Co., Ltd (Dongguan) Report Number: CR221264420-00A Date Of Issue: 2023/3/15 Reviewed By: Sun Zhong Title: Manager Test Laboratory: China Certification ICT Co., Ltd (Dongguan) No. 113, Pingkang Road, Dalang Town, Dongguan, Guangdong, China Tel: +86-769-82016888 China Certification ICT Co., Ltd (Dongguan) Report No.: CR221264420-00A Page 2 of 71 Test Facility The Test site used by China Certification ICT Co., Ltd (Dongguan) to collect test data is located on the No. 113, Pingkang Road, Dalang Town, Dongguan, Guangdong, China. The lab has been recognized as the FCC accredited lab under the KDB 974614 D01 and is listed in the FCC Public Access Link (PAL) database, FCC Registration No. : 442868, the FCC Designation No. : CN1314. The lab has been recognized by Innovation, Science and Economic Development Canada to test to Canadian radio equipment requirements, the CAB identifier: CN0123. Declarations China Certification ICT Co., Ltd (Dongguan) is not responsible for the authenticity of any test data provided by the applicant. Data included from the applicant that may affect test results are marked with a triangle symbol “▲”. Customer model name, addresses, names, trademarks etc. are not considered data. Unless otherwise stated the results shown in this test report refer only to the sample(s) tested. This report cannot be reproduced except in full, without prior written approval of the Company. This report is valid only with a valid digital signature. The digital signature may be available only under the Adobe software above version 7.0. This report may contain data that are not covered by the accreditation scope and shall be marked with an asterisk “★”. China Certification ICT Co., Ltd (Dongguan) Report No.: CR221264420-00A Page 3 of 71 CONTENTS T EST FACILITY .......................................................................................................................................... 2 DECLARATIONS .......................................................................................................................................... 2 DOCUMENT REVISION HISTORY .......................................................................................... 5 1. GENERAL INFORMATION .................................................................................................... 6 1.1 PRODUCT DESCRIPTION FOR EQUIPMENT UNDER TEST (EUT) ....................................................... 6 1.2 DESCRIPTION OF TEST CONFIGURATION ........................................................................................... 8 1.2.2 Support Equipment List and Details .............................................................................................................. 8 1.2.3 Support Cable List and Details ...................................................................................................................... 8 1.2.4 Block Diagram of Test Setup ......................................................................................................................... 9 1.3 MEASUREMENT UNCERTAINTY ........................................................................................................ 10 2. SUMMARY OF TEST RESULTS .......................................................................................... 11 3. REQUIREMENTS AND TEST PROCEDURES .................................................................. 12 3.1 AC LINE CONDUCTED EMISSIONS .................................................................................................... 12 3.1.1 Applicable Standard ..................................................................................................................................... 12 3.1.2 EUT Setup.................................................................................................................................................... 14 3.1.3 EMI Test Receiver Setup ............................................................................................................................. 14 3.1.4 Test Procedure ............................................................................................................................................. 15 3.1.5 Corrected Amplitude & Margin Calculation ................................................................................................ 15 3.2 RADIATION SPURIOUS EMISSIONS .................................................................................................... 16 3.2.1 Applicable Standard ..................................................................................................................................... 16 3.2.2 EUT Setup.................................................................................................................................................... 16 3.2.3 EMI Test Receiver & Spectrum Analyzer Setup ......................................................................................... 17 3.2.4 Test Procedure ............................................................................................................................................. 17 3.2.5 Corrected Amplitude & Margin Calculation ................................................................................................ 18 3.3 6 DB EMISSION BANDWIDTH: ............................................................................................................ 19 3.3.1 Applicable Standard ..........................…

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TEST REPORT Applicant: Shenzhen Sonoff Technologies Co.,Ltd. Address: 3F & 6F, Bldg A, No. 663, Bulong Rd, Shenzhen, Guangdong, China FCC ID: 2APN5AIBRIDGE IC: 29127-AIBRIDGE HVIN: AIBRIDGE, AIBRIDGE26 Product Name: Smart Home Hub Standard(s): 47 CFR Part 15, Subpart C(15.247) RSS-247 Issue 2, February 2017 RSS-Gen, Issue 5, February 2021 Amendment 2 ANSI C63.10-2013 KDB 558074 D01 15.247 Meas Guidance v05r02 The above equipment has been tested and found compliant with the requirement of the relative standards by China Certification ICT Co., Ltd (Dongguan) Report Number: CR221264420-00B Date Of Issue: 2023/4/26 Reviewed By: Sun Zhong Title: Manager Test Laboratory: China Certification ICT Co., Ltd (Dongguan) No. 113, Pingkang Road, Dalang Town, Dongguan, Guangdong, China Tel: +86-769-82016888 China Certification ICT Co., Ltd (Dongguan) Report No.: CR221264420-00B Page 2 of 59 Test Facility The Test site used by China Certification ICT Co., Ltd (Dongguan) to collect test data is located on the No. 113, Pingkang Road, Dalang Town, Dongguan, Guangdong, China. The lab has been recognized as the FCC accredited lab under the KDB 974614 D01 and is listed in the FCC Public Access Link (PAL) database, FCC Registration No. : 442868, the FCC Designation No. : CN1314. The lab has been recognized by Innovation, Science and Economic Development Canada to test to Canadian radio equipment requirements, the CAB identifier: CN0123. Declarations China Certification ICT Co., Ltd (Dongguan) is not responsible for the authenticity of any test data provided by the applicant. Data included from the applicant that may affect test results are marked with a triangle symbol “▲”. Customer model name, addresses, names, trademarks etc. are not considered data. Unless otherwise stated the results shown in this test report refer only to the sample(s) tested. This report cannot be reproduced except in full, without prior written approval of the Company. This report is valid only with a valid digital signature. The digital signature may be available only under the Adobe software above version 7.0. This report may contain data that are not covered by the accreditation scope and shall be marked with an asterisk “★”. China Certification ICT Co., Ltd (Dongguan) Report No.: CR221264420-00B Page 3 of 59 CONTENTS T EST FACILITY .......................................................................................................................................... 2 DECLARATIONS .......................................................................................................................................... 2 DOCUMENT REVISION HISTORY .......................................................................................... 5 1. GENERAL INFORMATION .................................................................................................... 6 1.1 PRODUCT DESCRIPTION FOR EQUIPMENT UNDER TEST (EUT) ....................................................... 6 1.2 DESCRIPTION OF TEST CONFIGURATION ........................................................................................... 8 1.2.2 Support Equipment List and Details .............................................................................................................. 8 1.2.3 Support Cable List and Details ...................................................................................................................... 8 1.2.4 Block Diagram of Test Setup ......................................................................................................................... 9 1.3 MEASUREMENT UNCERTAINTY ........................................................................................................ 10 2. SUMMARY OF TEST RESULTS .......................................................................................... 11 3. REQUIREMENTS AND TEST PROCEDURES .................................................................. 12 3.1 AC LINE CONDUCTED EMISSIONS .................................................................................................... 12 3.1.1 Applicable Standard ..................................................................................................................................... 12 3.1.2 EUT Setup.................................................................................................................................................... 14 3.1.3 EMI Test Receiver Setup ............................................................................................................................. 14 3.1.4 Test Procedure ............................................................................................................................................. 15 3.1.5 Corrected Amplitude & Margin Calculation ................................................................................................ 15 3.2 RADIATION SPURIOUS EMISSIONS .................................................................................................... 16 3.2.1 Applicable Standard ..................................................................................................................................... 16 3.2.2 EUT Setup.................................................................................................................................................... 16 3.2.3 EMI Test Receiver & Spectrum Analyzer Setup ......................................................................................... 17 3.2.4 Test Procedure ............................................................................................................................................. 17 3.2.5 Corrected Amplitude & Margin Calculation ................................................................................................ 18 3.3 6 DB EMISSION BANDWIDTH: ............................................................................................................ 19 3.3.1 Applicable Standard ..........................…

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EXHIBIT D - TEST SETUP PHOTOGRAPHS Conducted Emissions Front View Conducted Emissions Side View Radiated Emission Below 1GHz View Radiated Emission Above 1GHz View