General description This IP44 Waterproof Outdoor Wireless Doorbell offers a reliable solution for your home or business with a transmission range of up to 300 meters in open spaces. It features two transmitters and one receiver, allowing you to connect the receiver anywhere in your house without worrying about wireless interference. The doorbell is designed for easy installation and is made from high-quality, non-toxic ABS material. Technical specifications Transmission Range: 280 meters (without obstacles) Volume: 5 adjustable levels (0 dB to 85 dB) Ringtones: 36 different melodies Power supply (receiver): AC 110-240 V 50/60 Hz Power supply (transmitter): 1 x 12 V 23 A battery (included) Waterproof rating (transmitter): IP44 Maximum power consumption: 2 W Standby power consumption: 0.5 W Installation The receiver requires no assembly or batteries; simply plug it into an electrical outlet. The transmitter can be attached to the front door using the provided screws or adhesive tapes