2AK8Q-HWD01161Wireless Doorbell

Product specification Date: 2019.06.16 Entry name: HD16 Version number: 00.00.02 1、 Features 1. Non isolated buck power switch with high performance, high precision and low cost is adopted. The input voltage range is 85V AC ~ 265V AC, which is universal in the world and easy to stock. 2. Under voltage protection, over-voltage protection, over temperature protection, cycle by cycle over-current protection and short-circuit protection. Perfect protection function ensures the reliability of the system. 3. The safety tube is used at the input end to further ensure the product safety. (some peers use resistance instead of fuse) 4. It adopts high performance MCU and built-in EEPROM to save user configuration information. The peripheral circuit is simple and reliable. 5. High receiving sensitivity, general shell can reach - 110dBm 6. Transmit power up to 10dB 7. Long distance, more than 100 meters in open space 8. Modulation mode: 433.92mhz ASK 9. Thirty eight six chord tracks 10. The waiting current of transmitter is very low, less than 2uA 2.Operating instructions 1.Remote control matching Press the music + and Vol keys at the same time, and the LED lights up to enter the pairing mode. Press the remote control to be paired. If the pairing is successful, the LED at the receiving end flashes once and saves the pairing information. After 40 seconds, it will automatically exit the pairing mode. 2.Delete remote control pairing Press and hold the Vol key and all pairing information will be cleared automatically after 5 seconds. 3.Use of remote control Install the battery of the remote control, install the receiving terminal, and match it according to the above method (it has been equipped at the factory and can be used directly). Press the button on the remote control, and you will hear the music. If you are not satisfied with the music or sound, you can refer to the following method settings. 4.Set the music purpose There are 38 tracks in total. Press the music + track key once to switch to the next track, and press the track key again to return to the first track. Each time you press the music track key, you can switch to the previous song, and then press the track key again to return to the next song. 5.Setting of volume The volume is divided into 4 levels. Press the volume key to switch different volumes. 1. Electrical parameters Receiver: Standby current < 60uA(220V AC) Working current < 5mA(220 AC) Working frequency 433.92MHz GFSK Receiving sensitivity -110dBm Track data 38 working temperature -20 ~ 85 ºC working voltage 85V AC~265V AC Transmitter: Standby current < 2uA Working current < 15mA Working frequency 433.92MHz GFSK Transmitting power > 10dBm working temperature -20 ~ 85 ºC Battery type CR2032 working voltage DC 3V 1.Test mode In order to speed up production and save cost, a test mode was designed in the design. 2.Power test Take off the battery, press the remote control and do not put it on. After the battery is installed and powered on for 2 seconds, the LED flashes three times, indicating that it enters the power test mode. At this time, the remote control has a frequency of 433.92mHz, which is often transmitted. You can view the frequency and power values through the spectrum analyzer, and press any key to exit the power test mode. 1. Update records time edition Change content Modified by to examine 2020.5.18 V0.1 FIRST COMPILATION Meiying Bian 2020.06.16 V0.2 ADD SCHEMATIC DIAGRAM AND MODIFY OPERATION METHOD Hongxian Chen FCC Statement This device complies with part 15 of the FCC rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: • Reorient or relocate the receiving antenna. • Increase the separation between the equipment and receiver. • Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. • Consult the dealer or an experienced radio/TV technician for help. The device has been evaluated to meet general RF exposure requirement. The device can be used in portable exposure condition without restriction.

Shenzhen Unichain Technology Co., Ltd Agent Authorization Company: Shenzhen Unichain Technology Co., Ltd Address: 201, 2nd Floor, Building C, Shanhai Commercial Plaza Huangjunshan District, Bantian St, Longgang District, Shenzhen, China Product Name: Wireless Doorbell Trade Mark: TECKNET Model Number: HWD01161, HWD01162 FCC ID: 2AK8Q-HWD01161 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: 2020-10-28 Name: Zhiying Lan Title: Manager Company: Shenzhen Unichain Technology Co., Ltd

Shenzhen Unichain Technology Co., Ltd Date: 202010-28 To: MiCOM Labs Inc 575 Boulder Court, Pleasanton, California 94566, USA Dear Sir/Madam, We, Shenzhen Unichain 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: TECKNET Model No.: HWD01161, HWD01162 Signature: Date: 2020-10-28 Name: Zhiying Lan Title: Manager Company: Shenzhen Unichain Technology Co., Ltd

Shenzhen Unichain Technology Co., Ltd Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 USA Date: 2020-10-28 Subject; Request for Confidentiality FCC ID: 2AK8Q-HWD01161 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: Zhiying Lan Title: Manager

SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AK8Q-HWD01161 This report shall not be reproduced except in full, without the written approval of Shenzhen LCS Compliance Testing Laboratory Ltd. Page 1 of 6 External Photos of the EUT Fig. 1 Fig. 2 SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AK8Q-HWD01161 This report shall not be reproduced except in full, without the written approval of Shenzhen LCS Compliance Testing Laboratory Ltd. Page 2 of 6 Fig. 3 Fig. 4 SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AK8Q-HWD01161 This report shall not be reproduced except in full, without the written approval of Shenzhen LCS Compliance Testing Laboratory Ltd. Page 3 of 6 Fig. 5 Fig. 6 SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AK8Q-HWD01161 This report shall not be reproduced except in full, without the written approval of Shenzhen LCS Compliance Testing Laboratory Ltd. Page 4 of 6 Fig. 7 Fig. 8 SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AK8Q-HWD01161 This report shall not be reproduced except in full, without the written approval of Shenzhen LCS Compliance Testing Laboratory Ltd. Page 5 of 6 Fig. 9 Fig. 10 SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AK8Q-HWD01161 This report shall not be reproduced except in full, without the written approval of Shenzhen LCS Compliance Testing Laboratory Ltd. Page 6 of 6 Fig. 11 Fig. 12

SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AK8Q-HWD01161 _____________________________________________________________________________________________________ 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: HWD01161 FCC ID: 2AK8Q-HWD01161

SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AK8Q-HWD01161 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: 2AK8Q-HWD01161 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: 2AK8Q-HWD01161 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 TX Antenna

SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AK8Q-HWD01161 Report No.: LCS200803252AEA 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 Unichain Technology Co., Ltd Wireless Doorbell Test Model: HWD01161 Additional Model No.: HWD01162 Prepared for : Shenzhen Unichain Technology Co., Ltd Address : 201, 2nd Floor, Building C, Shanhai Commercial Plaza Huangjunshan District, Bantian St, Longgang 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 03, 2020 Number of tested samples : 1 Serial number : Prototype Date of Test : August 03, 2020 ~ October 14, 2020 Date of Report : October 15, 2020 SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AK8Q-HWD01161 Report No.: LCS200803252AEA 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. .............. : LCS200803252AEA Date of Issue ............................... : October 15, 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 Unichain Technology Co., Ltd Address ....................................... : 201, 2nd Floor, Building C, Shanhai Commercial Plaza Huangjunshan District, Bantian St, Longgang 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 .................................. : TECKNET Test Model ................................... : HWD01161 Ratings ........................................ : TX: DC 3.0V By CR2032 RX: Input: AC 85V-265V 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: 2AK8Q-HWD01161 Report No.: LCS200803252AEA 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........................... : HWD01161 Applicant............................... : Shenzhen Unichain Technology Co., Ltd Address.................................. : 201, 2nd Floor, Building C, Shanhai Commercial Plaza Huangjunshan District, Bantian St, Longgang District, Shenzhen, China Telephone............................... : / Fax.......................................... : / Manufacturer....................... : Shenzhen Unichain Technology Co., Ltd Address................................... : 201, 2nd Floor, Building C, Shanhai Commercial Plaza Huangjunshan District, Bantian St, Longgang District, Shenzhen, China Telephone............................... : / Fax.......................................... : / Factory....................... : / Address................................... : / 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. : LCS200803252AEA October 15, 2020 Date of issue SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AK8Q-HWD01161 Report No.: LCS200803252AEA 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 October 15, 2020 Initial Issue Gavin Liang SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AK8Q-HWD01161 Report No.: LCS200803252AEA 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 .......................................................................................................................................................... 6 1.3. ENVIRONMENTAL CONDITIONS ..................................…

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SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AK8Q-HWD01161 _______________________________________________________________________________________________ 1. TEST SETUP PHOTOGRAPHS 1.1. Photo of Radiated Emissions Measurement Fig. 1 Fig. 2