
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 volume button on the receiver for about 5 seconds (the indicator light is on), release the volume button, then press the button immediately, the signal is paired successfully. Package Content: 2x Outdoor Transmitter 1x Indoor Receiver