2AUSPBELL-JVideo Doorbell

1.2

Shenzhen Joystek Intelligence Co., Ltd 101-7, Commercial Podium of Building 25, Vanke PuYueShan, Banxuegang Blvd, Bantian, Longgang District, Shenzhen, China Tel: +86-755-2735 3249 E-mail: [email protected] Attestation Letter Date: 2020/05/21 To: Bay Area Compliance Laboratories Corp. 1274 Anvilwood Avenue Sunnyvale, CA 94089 Dear Sir or Madam: We, Shenzhen Joystek Intelligence Co., Ltd, hereby declare that The chip, model: CMT2110A, installed in our product named as Video Doorbell, FCC ID: 2AUSPBELL-J, Model No: Bell J2/ Bell J3/ Bell J4/ Bell J5, which support 433MHz Radio. For use in the US marketing this product will not support/enable the 433MHz Radio function has been shielded by the manufacturer by using the software. Sincerely, Signature Jerome Yang Title: CEO

Shenzhen Joystek Intelligence Co., Ltd 101-7, Commercial Podium of Building 25, Vanke PuYueShan, Banxuegang Blvd, Bantian, Longgang District, Shenzhen, China Tel: +86-755-2735 3249 E-mail: [email protected] FCC Confidential Authorization Date: 2020-05-21 FEDERAL COMMUNICATIONS COMMISSIONS Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Subject: Confidentiality Request regarding application for certification of FCC ID: 2AUSPBELL-J In accordance with Sections 0.457 and 0.459 of the Commission’s Rules, Shenzhen Joystek Intelligence Co., Ltd hereby requests long-term confidential treatment of information accompanying this application as outlined below:  Block Diagram  Schematics  Operation Description The above materials contain proprietary and confidential information not customarily released to the public. The public disclosure of these materials provides unjustified benefits to its competitors in the market. Sincerely Yours, Signature: Jerome Yang Title: CEO

EXHIBIT C - EUT INTERNAL PHOTOGRAPHS

EXHIBIT A - FCC ID LABEL AND LOCATION FCC ID Label FCC ID Label Location Information The label shown shall be permanently affixed at a conspicuous location on the device and be readily visible to the user at the time purchase (Labeling requirements per 2.925)

EXHIBIT B - EUT EXTERNAL PHOTOGRAPHS Antenna

Bay Area Compliance Laboratories Corp. (Shenzhen) Report No.: RSZ200323814-00 FCC Part 15.247 Page 12 of 58 FCC §15.247 (i) & §2.1091- MAXIMUM PERMISSIBLE EXPOSURE (MPE) Applicable Standard According to subpart 15.247 (i) and subpart 2.1091 systems operating under the provisions of this section shall be operated in a manner that ensures the public is not exposed to RF energy level in excess of the communication guidelines. Limits for General Population/Uncontrolled Exposure Limits for General Population/Uncontrolled Exposure Frequency Range (MHz) Electric Field Strength (V/m) Magnetic Field Strength (A/m) Power Density (mW/cm 2 ) Averaging Time (Minutes) 0.3-1.34 614 1.63 *(100) 30 1.34-30 824/f 2.19/f *(180/f 2 ) 30 30-300 27.5 0.073 0.2 30 300-1500 / / f/1500 30 1500-100,000 / / 1.0 30 f = frequency in MHz * = Plane-wave equivalent power density Result Calculated Formulary: Predication of MPE limit at a given distance S = 2 4R PG  S = power density (in appropriate units, e.g. mW/cm2) P = power input to the antenna (in appropriate units, e.g., mW). G = power gain of the antenna in the direction of interest relative to an isotropic radiator, the power gain factor, is normally numeric gain. R = distance to the center of radiation of the antenna (appropriate units, e.g., cm) Frequency (MHz) Antenna Gain Max Tune Up Conducted Power Evaluation Distance (cm) Power Density (mW/cm 2 ) MPE Limit (mW/cm 2 ) (dBi) (numeric) (dBm) (mW) 2412-2472 3.0 2.0 15.0 31.6 20 0.013 1.0 Note: To maintain compliance with the FCC’s RF exposure guidelines, place the equipment at least 20cm from nearby persons. Result: compliance.

Note: This report must not be used by the customer to claim product certification, approval, or endorsement by A2LA* or any agency of the Federal Government. This report may contain data that are not covered by the A2LA accreditation and are marked with an asterisk “★”. BACL 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 an asterisk ’*’. Customer model name, addresses, names, trademarks etc. are not considered data. This report cannot be reproduced except in full, without prior written approval of the Company. Unless otherwise stated the results shown in this test report refer only to the sample(s) tested. 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. FCC PART 15.247 TEST REPORT For Shenzhen Joystek Intelligence Co., Ltd 101-7, Commercial Podium of Building 25, Vanke PuYueShan, Banxuegang Blvd, Bantian, Longgang District, Shenzhen, China FCC ID: 2AUSPBELL-J R e p o r t T y p e : O r i gi n a l R e p o r t Pro d u c t T y p e : V i d e o D o o r b e l l Report Number: RSZ200323814-00 Report Date: 2020-07-02 Reviewed By: Jimmy Xiao RF Engineer Prepared By: Bay Area Compliance Laboratories Corp. (Shenzhen) 6/F., West Wing, Third Phase of Wanli Industrial Building, Shihua Road, Futian Free Trade Zone, Shenzhen, Guangdong, China Tel: +86-755-33320018 Fax: +86-755-33320008 www.baclcorp.com.cn Bay Area Compliance Laboratories Corp. (Shenzhen) Report No.: RSZ200323814-00 FCC Part 15.247 Page 2 of 58 TABLE OF CONTENTS GENERAL INFORMATION ....................................................................................................................................... 4 PRODUCT DESCRIPTION FOR EQUIPMENT UNDER TEST (EUT) ..................................................................................... 4 OBJECTIVE ................................................................................................................................................................... 4 RELATED SUBMITTAL(S)/GRANT(S) ............................................................................................................................. 4 TEST METHODOLOGY .................................................................................................................................................. 4 MEASUREMENT UNCERTAINTY .................................................................................................................................... 5 SYSTEM TEST CONFIGURATION .......................................................................................................................... 6 DESCRIPTION OF TEST CONFIGURATION ...................................................................................................................... 6 EQUIPMENT MODIFICATIONS ....................................................................................................................................... 6 EUT EXERCISE SOFTWARE .......................................................................................................................................... 6 DUTY CYCLE ................................................................................................................................................................ 7 SUPPORT EQUIPMENT LIST AND DETAILS .................................................................................................................... 9 EXTERNAL I/O CABLE.................................................................................................................................................. 9 BLOCK DIAGRAM OF TEST SETUP ................................................................................................................................ 9 SUMMARY OF TEST RESULTS ............................................................................................................................. 10 TEST EQUIPMENT LIST ......................................................................................................................................... 11 FCC §15.247 (i) & §2.1091- MAXIMUM PERMISSIBLE EXPOSURE (MPE) ........................................................ 12 APPLICABLE STANDARD ............................................................................................................................................ 12 RESULT ...................................................................................................................................................................... 12 FCC §15.203 - ANTENNA REQUIREMENT ........................................................................................................... 13 APPLICABLE STANDARD ............................................................................................................................................ 13 ANTENNA CONNECTOR CONSTRUCTION .................................................................................................................... 13 FCC §15.207 (a) – AC LINE CONDUCTED EMISSIONS ..................................................................................... 14 APPLICABLE STANDARD ............................................................................................................................................ 14 EUT SETUP ................................................................................................................................................................ 14 EMI TEST RECEIVER SETUP ....................................................................................................................................... 14 TEST PROCEDURE ...................................................................................................................................................... 14 CORRECTED FACTOR & MARGIN CALCULATION ...............................…

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EXHIBIT D - TEST SETUP PHOTOGRAPHS DC5V: Conducted Emissions - Front View Conducted Emissions - Side View Radiated Emissions View (Below 1 GHz) Radiated Emissions View (Above 1 GHz) AC 24V Conducted Emissions - Front View Conducted Emissions - Side View Radiated Emissions View (Below 1 GHz) DC12V Conducted Emissions - Front View Conducted Emissions - Side View Radiated Emissions View (Below 1 GHz)