Product Description
Wall Plug EU US UK AC Socket Remote Control door bell, 3 Receiver 1 Transmitter Home Waterproof 200m Mini Intelligence Door Bell 48 Tunes
Installation Notes:
1.Transmitter:clean the case first and paste the double sticker,then put the transmitter on the wall.In order to make it work properly,the height should be >1.5m.
(Warning: please do not install on the metal door/window)
2. Receivers: plug into the socket.
Walls and metal objects will shorten the range,and may interfere with its operation(metal fence,door,gate...)furthermore devices using radiofrequency can do the same(computer,microwave oven,television...)
3.The shorter distance (between transmitter and receiver), the signal will be better.
Transmitter
Working voltage: 12V 12V23A*1pcs
Working Frequency: 433MHZ
Standby current: 1μA
Working current: 12mA
RF standby power: 0 dbm
Working range: about 200-300m (on open air)
Failure Analysis and Troubleshooting:
1. Doorbell does not ring
F: receiver host isn't plugged in or tune mute
A: plug into socket or adjust the volume keys
F: Transmitter battery positive and negative anti-loaded
A: Reinstall the battery
F: Transmitter and receiver pair unsuccessful
A: Re-pair
2.Range become shorter
Please make sure the doorbell away from metal objects.
Buildings, walls, enclosed space will decrease the transmission signal.
Battery voltage or power is not enough will shorten the distance, or misuse ring.
Receiving distance:280M(open area)
Volume:6 files(can be mute)
Ringtones:48 pcs
Transmitter size:75*42*19mm
Receiver size:90*60*30mm
The transmitter use a 12V 23A alkaline bettery(not include)
The receiver plug-in household sockdt can be work.
Product list
1 x doorbell transmitter
3 x doorbell receiver
1 x double sided tape
1 x screw
Audited Supplier 
){kind=link}