
Features and Specifications Color: White/Black Receiver Voltage: AC110-240V Ringtone: 38 polyphonic ringtones Optional Remote Control: 300 meters range Transmitter Power: 12V 23A Alkaline Battery (Not Included) How to pair signals? Pairing Method: Press and hold the receiver volume button for about 5 seconds (the indicator light is on), release the volume button, then press the button immediately, the signal is paired successfully. Package Contents: 1 x Outdoor Transmitter 1 x Indoor Receiver