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)
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 radio frequency can do the same(computer,microwave oven,television...)
The shorter distance (between transmitter and receiver), the signal will be better. 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 1. 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.

• With a flat headed screwdriver fold pen the bell push. According to the given polarity input an LR 23A (12V) alkaline battery.
• Receiver: Connect the bell to a 90-260V network.
• 4 levels adjustable volume
• 36 varied style of tunes for optional
• transmitter and receiver can be paired freely

With a flat headed screwdriver fold pen the bell push. According to the given polarity input an LR 23A (12V) alkaline battery.FAMILOVE