Waterproof Intelligent Door Chime Remote Welcome Doorbell 300M Doorbell For Patient

Label:Yes Color: gold Receiving distance:300 meters in open area. Plug:EU plug Receiver voltage: 110-220V Size:AS the picture Package includes: 1Pcs Doorbell

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.

How to modify and lock music? 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.