General description The Black Wireless Doorbell features a minimalist design and is IP55 waterproof, making it suitable for outdoor use. Its wireless installation is straightforward: simply attach the button to the outside wall and plug the receiver into a socket, and it's ready to use. With a reliable wireless signal coverage of up to 300 m, you will never miss visitors or packages again. Technical specifications Waterproof rating: IP55 Wireless range: 300 m Transmitter battery life: Up to 3 years Volume levels: 5 adjustable levels Sound level: 100 dB Number of ringtones: 55 Usage Designed for the hearing impaired and the elderly with a loud doorbell and flashing LED. Volume can be set to 0 dB for silent operation. Other information Expandable system: You can add additional receivers and transmitters of the same model. 24-month warranty included.