Self-Powered Wireless Doorbell Home kit: No batteries required for Both transmitter (push button) and receiver. When the transmitter is pressed, it generates electric power itself and sends stable signal to receiver.There is no need to worry about the unexpected situation that the wireless doorbell chime can not work when the battery is exhausted
Waterproof Wireless Doorbell:transmitter with a waterproof ring structure, wireless doorbells for withstands tough weather conditions 60 Ringtones & 5-Level Volume
Long Working Distance: This wireless doorbell for home/apartment/classroom/factory/hospital features up to 150m wireless range, ensuring you wont miss a visitor, even if you are a few rooms away or on another floor. Please ensure that your door is not a metal door, as metal can have a strong interference with the signal, greatly reducing the working distance of the doorbell under normal conditions

Plug Type:EU Plug,it applies to Indonesia, Germany, France, Spain, Italy and so on
Colour:As Shown
Material:ABS
Voltage: AC 220V

Package Contents:
1 x Receiver
1 x Transmitter

Only the above package content, other products are not included.
Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.