Linbell Self-Powered Doorbell is a creative plug-in wireless doorbell, which is easy to install, requires no wiring and no battery replacement. G4 is more progressive than G2 for the smaller receiver size, adjustable volume and door identify via ringtone, as well as power off memory.
Self-powered ( No battery needed ) wireless doorbell, which turns kinetic energy into an electrical signal to ring your wireless doorbells. More convenient and greener than the battery operated doorbell
Plug in wireless doorbell, easy to install and set up. No wire wiring required
Built-in 36 selectable ringtones, each of them can separately match one receiver, helping you to tell that at which door someone is knocking.
The 4 levels volume is adjustable and loud enough to cover your house
Power off memory, able to restore your tunes setting when a power cut accidentally happens
Long Range Wireless doorbell, the signal can pass through doors, walls, floors. By adding the number of receivers, you can get longer range.
Compact size, the receiver is smaller than ever before, saving space of your socket
Wireless doorbell with multiple receivers: You can choose the number of receivers according to your house area and building structure