Powered by kinetic energy, no need battery for both transmitter and receiver
Wireless doorbell with multiple receivers, you can choose the number of receivers according to your house area and building structure
With bright LED light inside, can be used as a night-light, which is very useful when you need to get up at night
Long Range Wireless doorbell, the signal can pass through doors, walls, floors. By adding the number of receivers, you can get longer range
Built-in 38 selectable ringtones to suit your needs.
Original EU/US/UK Plug of the receiver is available