Wireless Doorbell
Customizable sound
Accept MicroTF cards until 64GB
Melodies in memory: 10
Max. Distance: 200 meters
Volume: 25-110dB
Frequency: 433±2MHz
Valid for indoor and outdoor
4 volume levels

Parameters

Receiver:
Speaker: 8Ω1W
Receiver Sensitivity: -110DBM
Static Current: < 500μA
Working Current: < 300mA
Working Voltage: 3.3V-5V (3 pcs AA battery)

Transmitter:
Working Current: < 30mA
Power Consumption: < 16DBM
Working Voltage: 5V-12V (1 pcs 12V23A battery)

Range of Application

House, Office, Hotel Service
Community Building, Factory, Construction Site
And other areas that is suitable for short-distance wireless environment.