General description The Wireless Doorbell is a smart home solution designed for convenience and ease of use. It features a sleek design available in black and white, making it a stylish addition to any home. With a range of up to 300 meters, this doorbell ensures you never miss a visitor. Technical specifications Color: White, Black Receiver Voltage: AC110-240V Ringtone: 38 polyphonic ringtones Transmitter Power: 12V23A alkaline battery (not included) Operating Range: 300 meters Installation Easy installation with included components Package Contents: 1 x Outdoor Transmitter, 1 x Indoor Receiver Usage To pair signals: Press and hold the volume button on the receiver for about 5 seconds (the indicator light will turn on), release the volume button, then press the button immediately to successfully pair the signal.