This wireless digital door chime includes a wireless bell push and a receiver plug. The chime features strong digital anti-interference to prevent mis-ringing. The wireless design makes installation easy and brings no effects to interior decoration.

• Bell push transmitter power: 12V battery.
• Frequency 433.92MHz.
• Receiver plug power: 230V or 110VAC.
• Transmission range: up to 40m in an open area.