2AVEJ-WA878Wireless doorbell with SRD

Shenzhen Kerui Smart Technology Co.,Ltd Agent Authorization Company: Shenzhen Kerui Smart Technology Co.,Ltd Address: Building B1, Xinhaosheng Industral zone, Yonghe Road, Qiaotou, Fuyong Subdistrict, Bao’an District, Shenzhen, China Product Name: Wireless doorbell Trade Mark: Kerui, TECKNET Model Number: WA878 FCC ID: 2AVEJ-WA878 We authorize MiCOM Labs Inc., 575 Boulder Court, Pleasanton, California 94566, USA, to act on our behalf on all matters concerning the certification of above named equipment. We declare that MiCOM Labs Inc. is allowed to forward all information related to the approval and certification of equipment to the regulatory agencies as required and to discuss any issues concerning the approval application. Any and all acts carried out by MiCOM Labs on our behalf shall have the same effect as acts of our own. Signature: Date: 2020-10-21 Name: xiaochao Title: business manager Company: Shenzhen Kerui Smart Technology Co.,Ltd

Shenzhen Kerui Smart Technology Co.,Ltd Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 USA Date: 2020-10-21 Subject; Request for Confidentiality FCC ID: 2AVEJ-WA878 To Whom It May Concern, Pursuant to the provisions of the Commission’s rules Title 47 Sections §0.457 and §0.459, we are requesting the Commission to withhold the following attachment(s) as confidential documents from public disclosure indefinitely. These documents contain detailed system and equipment descriptions and are considered as proprietary information in operation of the equipment. The public disclosure of these documents might be harmful to our company and would give competitors an unfair advantage in the market. Schematic Diagram Block Diagram Operational Description BOM Tune-up Procedure In additional to above mentioned documents, in order to comply with the marketing regulations in Title 47 CFR §2.803 and the importation rules in Title 47 CFR §2.1204, while ensuring that business sensitive information remains confidential until the actual marketing of newly authorized devices, we request Short Term Confidentiality of the following attachment(s); External Photos Test Setup Photos Internal Photos User Manual For 45 days, pursuant to Public Notice DA 04-1705. OR For 180 days pursuant to KDB 726920 D01. It is our understanding that all measurement test reports, FCC ID label format and correspondence during the certification review process cannot be granted as confidential documents and this information will be available for public review once the grant of equipment authorization is issued. Sincerely, Signature: Name: xiaochao Title: business manager

SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AVEJ-WA878 This report shall not be reproduced except in full, without the written approval of Shenzhen LCS Compliance Testing Laboratory Ltd. Page 1 of 7 External Photos of the EUT Fig. 1 Fig. 2 SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AVEJ-WA878 This report shall not be reproduced except in full, without the written approval of Shenzhen LCS Compliance Testing Laboratory Ltd. Page 2 of 7 Fig. 3 Fig. 4 SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AVEJ-WA878 This report shall not be reproduced except in full, without the written approval of Shenzhen LCS Compliance Testing Laboratory Ltd. Page 3 of 7 Fig. 5 Fig. 6 SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AVEJ-WA878 This report shall not be reproduced except in full, without the written approval of Shenzhen LCS Compliance Testing Laboratory Ltd. Page 4 of 7 Fig. 7 Fig. 8 SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AVEJ-WA878 This report shall not be reproduced except in full, without the written approval of Shenzhen LCS Compliance Testing Laboratory Ltd. Page 5 of 7 Fig. 9 Fig. 10 SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AVEJ-WA878 This report shall not be reproduced except in full, without the written approval of Shenzhen LCS Compliance Testing Laboratory Ltd. Page 6 of 7 Fig. 11 Fig. 12 SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AVEJ-WA878 This report shall not be reproduced except in full, without the written approval of Shenzhen LCS Compliance Testing Laboratory Ltd. Page 7 of 7 Fig. 13

SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AVEJ-WA878 _____________________________________________________________________________________________________ This report shall not be reproduced except in full, without the written approval of Shenzhen LCS Compliance Testing Laboratory Ltd.. Page 1 of 1 LABEL AND LOCATION (Size: L3.5m x 2.0cm) Material: silk-screen Font color: Black Label color: White Label Location Wireless doorbell Model: WA878 FCC ID: 2AVEJ-WA878

SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AVEJ-WA878 This report shall not be reproduced except in full, without the written approval of Shenzhen LCS Compliance Testing Laboratory Ltd. Page 1 of 3 Internal Photos of the EUT Fig.1 Fig.2 SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AVEJ-WA878 This report shall not be reproduced except in full, without the written approval of Shenzhen LCS Compliance Testing Laboratory Ltd. Page 2 of 3 Fig.3 Fig.4 RX Antenna SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AVEJ-WA878 This report shall not be reproduced except in full, without the written approval of Shenzhen LCS Compliance Testing Laboratory Ltd. Page 3 of 3 Fig.5 Fig.6 TX Antenna

SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AVEJ-WA878 Report No.: LCS191011058AEA This report shall not be reproduced except in full, without the written approval of Shenzhen LCS Compliance Testing Laboratory Ltd. Page 1 of 26 FCC TEST REPORT For Shenzhen Kerui Smart Technology Co.,Ltd Wireless doorbell Test Model: WA878 Additional Model No.: / Prepared for : Shenzhen Kerui Smart Technology Co.,Ltd Address : Building B1, Xinhaosheng Industral zone, Yonghe Road, Qiaotou, Fuyong Subdistrict, Bao’an District, Shenzhen, China Prepared by : Shenzhen LCS Compliance Testing Laboratory Ltd. Address : 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Shajing Street, Baoan District, Shenzhen, China Tel : (+86)755-82591330 Fax : (+86)755-82591332 Web : www.LCS-cert.com Mail : [email protected] Date of receipt of test sample : August 01, 2020 Number of tested samples : 1 Serial number : Prototype Date of Test : August 01, 2020 ~ September 17, 2020 Date of Report : September 17, 2020 SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AVEJ-WA878 Report No.: LCS191011058AEA This report shall not be reproduced except in full, without the written approval of Shenzhen LCS Compliance Testing Laboratory Ltd. Page 2 of 26 FCC TEST REPORT FCC CFR 47 PART 15 C(15.231) Report Reference No. .............. : LCS191011058AEA Date of Issue ............................... : September 17, 2020 Testing Laboratory Name .......... : Shenzhen LCS Compliance Testing Laboratory Ltd. Address ....................................... : 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Shajing Street, Baoan District, Shenzhen, China Testing Location/ Procedure ........ : Full application of Harmonised standards ■ Partial application of Harmonised standards □ Other standard testing method □ Applicant’s Name ...................... : Shenzhen Kerui Smart Technology Co.,Ltd Address ....................................... : Building B1, Xinhaosheng Industral zone, Yonghe Road, Qiaotou, Fuyong Subdistrict, Bao’an District, Shenzhen, China Test Specification Standard ...................................... : FCC CFR 47 PART 15 Subpart C, ANSI C63.10-2013 Test Report Form No. ................ : LCSEMC-1.0 TRF Originator ............................. : Shenzhen LCS Compliance Testing Laboratory Ltd. Master TRF ................................. : Dated 2011-03 Shenzhen LCS Compliance Testing Laboratory Ltd. All rights reserved. This publication may be reproduced in whole or in part for non-commercial purposes as long as the Shenzhen LCS Compliance Testing Laboratory Ltd. is acknowledged as copyright owner and source of the material. Shenzhen LCS Compliance Testing Laboratory Ltd. takes no responsibility for and will not assume liability for damages resulting from the reader's interpretation of the reproduced material due to its placement and context. Test Item Description. ............... : Wireless doorbell Trade Mark .................................. : Kerui, TECKNET Test Model ................................... : WA878 Ratings ........................................ : TX: DC 3.0V By CR2032 Battery RX: AC 100-240V, 50/60Hz Result ........................................ : Positive Compiled by: Supervised by: Approved by: Cherry Chen/ File administrators Jin Wang / Technique principal Gavin Liang/ Manager SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AVEJ-WA878 Report No.: LCS191011058AEA This report shall not be reproduced except in full, without the written approval of Shenzhen LCS Compliance Testing Laboratory Ltd. Page 3 of 26 FCC -- TEST REPORT EUT......................................... : Wireless doorbell Test Model........................... : WA878 Applicant............................... : Shenzhen Kerui Smart Technology Co.,Ltd Address.................................. : Building B1, Xinhaosheng Industral zone, Yonghe Road, Qiaotou, Fuyong Subdistrict, Bao’an District, Shenzhen, China Telephone............................... : / Fax.......................................... : / Manufacturer....................... : Shenzhen Kerui Smart Technology Co.,Ltd Address................................... : Building B1, Xinhaosheng Industral zone, Yonghe Road, Qiaotou, Fuyong Subdistrict, Bao’an District, Shenzhen, China Telephone............................... : / Fax.......................................... : / Factory....................... : Shenzhen Kerui Smart Technology Co.,Ltd Address................................... : Building B1, Xinhaosheng Industral zone, Yonghe Road, Qiaotou, Fuyong Subdistrict, Bao’an District, Shenzhen, China Telephone............................... : / Fax.......................................... : / Test Result Positive The test report merely corresponds to the test sample. It is not permitted to copy extracts of these test result without the written permission of the test laboratory. Test Report No. : LCS191011058AEA September 17, 2020 Date of issue SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AVEJ-WA878 Report No.: LCS191011058AEA This report shall not be reproduced except in full, without the written approval of Shenzhen LCS Compliance Testing Laboratory Ltd. Page 4 of 26 Revision History Revision Issue Date Revisions Revised By 000 September 17, 2020 Initial Issue Gavin Liang SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AVEJ-WA878 Report No.: LCS191011058AEA This report shall not be reproduced except in full, without the written approval of Shenzhen LCS Compliance Testing Laboratory Ltd. Page 5 of 26 TABLE OF CONTENTS 1. GENERAL INFORMATION ................................................................................................................................... 6 1.1. DESCRIPTION OF DEVICE (EUT) ........................................................................................................................ 6 1.2. OBJECTIVE ...........................................................................................…

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SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AVEJ-WA878 _______________________________________________________________________________________________ 1. TEST SETUP PHOTOGRAPHS 1.1. Photo of Radiated Emissions Measurement Fig. 1 Fig. 2