Digital Self-power Digital Wireless Doorbell Plug type US
Receiver
Voltage: DC 110-240V
Standby current: 7mA
Working current: 60mA
Transmitter
Voltage: 12V 12V23A*1pcs
Standby current: 1μA
Working current: 12mA
RF standby power: 0 dbm
Crosstalk rate: 1/4,200 000 000
Service life: 200 000 trouble-free operations. 20 years service life (20 operations per day)
With LED Indicator
Frequency:433MHZ
Operation distance: Max 100-150 m
Music: 32 tunes
Sound: 110 dB ( 4 grad volumes)