2AVEJKR-M525Wireless 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: KR-M525, WA658, WA659 FCC ID: 2AVEJKR-M525 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 Date: 2020-10-21 To: MiCOM Labs Inc 575 Boulder Court, Pleasanton, California 94566, USA Dear Sir/Madam, We, Shenzhen Kerui Smart Technology Co.,Ltd Hereby declares the following statement for MiCOM Labs Inc, PCB board, structure and internal of these model(s) are the same, Only models name is different for these models: Product name: Wireless doorbell Trade Mark: Kerui, TECKNET Model No.: KR-M525, WA658, WA659 FCC ID: 2AVEJKR-M525 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: 2AVEJKR-M525 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: 2AVEJKR-M525 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: 2AVEJKR-M525 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: 2AVEJKR-M525 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: 2AVEJKR-M525 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: 2AVEJKR-M525 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: 2AVEJKR-M525 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: 2AVEJKR-M525 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: 2AVEJKR-M525 _____________________________________________________________________________________________________ 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: KR-M525 FCC ID: 2AVEJKR-M525

SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AVEJKR-M525 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: 2AVEJKR-M525 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 TX Antenna SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AVEJKR-M525 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.3 Fig.4 RX Antenna

SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AVEJKR-M525 _______________________________________________________________________________________________ 1. TEST SETUP PHOTOGRAPHS 1.1. Photo of Radiated Emissions Measurement Fig. 1 Fig. 2