Digital Motion Sensor Wireless Doorbell Battery type US/EU
Receiver
Voltage: DC 110-240V
Standby current: 7mA
Working current: 60mA
Transmitter
Voltage: 4.5V AAA*3pcs or by USB charger
Standby current: 1μA
Working current: 12mA
RF standby power: 0 dbm
Infrared sensing distance: 3-7 meters
With LED Indicator
Frequency: 433MHZ
Operation distance: Max 150-200 m
Music: 38 tunes
Sound: 25-80dB ( 3 grad volumes)