Cacazi FA99 Self-Powered Wireless Doorbell - Gold

CACAZI FA99 Wireless Self-generating Press Doorbell Home Remote Door Bell, 1 Receiver and 1 Transmitter

Self-generating transmitter, no battery is needed, a finger press can trigger the generator to convert into electrical energy
Barrier-free receiving distance can reach 150M in a straight line
4 levels adjustable volume, which can be adjusted freely (Volume can be adjusted to mute)
The transmitter is installed outside the door, the receiver is installed on the power socket, press the transmitter and ring the bell, and the receiver immediately rings and flashes to remind

Specification:

Model: FA99
Music: 36 music optional
Volume: 4 levels of volume adjustable (adjustable mute)
Transmitter: no battery required, press to generate electricity
Receiver: plug in the power supply (110-220V)
Transmitter size: 70*46*24mm
Receiver size: 91*59*25mm
Remote control distance: straight line 150M on open ground