A20 pro Self-Powered doorbell wireless waterproof 300 Meters Remote Door Bell 38 Songs no bat

Product introduction

Self-generated models of technical parameters

Receiver operating voltage: AC100-240V50HZ/60HZ

Receiver power consumption: 0.5W

Operating frequency: 433MHZ

Transmitter power consumption: <10mw (spectrometer antenna combined test, CE limits) Transmitter battery: battery-free, self-powered Transmitter life: about 100,000 times a day, 8-10 times a day, life of about 30 years Volume adjustable range: 25-85dB (dB) Counting 0.5 meters at the test Wireless distance: open about 200 meters, indoor obstacles including about 20-30 meters Package : 1 x doorbell 1 x receiver double faced adhesive tape Operation guide: 1.How to modify and lock music Press and hold the volume button of the receiver before plugging in the power socket. Plug in the power socket until the light of the receiver lights up, release the volume button, press the music button to adjust to the favorite music ringtone, press and hold the volume button again until When the light is on, press the transmitter twice immediately and the music is locked successfully. 2.How to pair signals Pairing method: press and hold the volume button on the receiver for about 5 seconds (the light is on), release the volume button, then press the button immediately, the signal is successfully paired. Note: Wireless distance is affected by the wall, radio, metal, etc., the actual use of a certain deviation is normal phenomenon