Wireless Doorbell Battery type
Receiver
Voltage: 3V AAA*2pcs
Standby current: 7mA
Working current: 60mA
Transmitter
Voltage: 12V 12V23A*1pcs
Standby current: 1μA
Working current: 12mA
RF standby power: 0 dbm
With LED Indicator
Frequency: 315MHZ
Operation distance: Max 70-110 m
Music: 32 tunes
Sound: 25-80dB ( 3 grad volumes)