4 volume levels

4 working modes

40 chimes (39 ringtone+1alarm sound)

LED Indicator

Range: 400M (open area)

Volume: 0~100dB

Transmitter Waterproof grade: IP55

Working temperature: -20℃~+55℃

Frequency: 433.92MHz

Receiver voltage: AC110V-AC230V 50Hz/60Hz

Transmitter battery: 3V CR2032

Can store up 8 transmitters code

Each transmitter can choose its own individual chime