Wireless doorbell | Power adapter | 220 - 240 V AC 50 Hz | 1x CR2032 | Volume: 80 dB | Signal range: 100 m | Adjustable volume | 36 Melodies | 1 Recipient | White

This wireless doorbell is very easy to install. Connect the receiver and mount the transmitter on the door with the supplied materials: the doorbell is now ready to use! The self-powered transmitter converts motion energy into an electrical signal and is fully functional without a battery.