General description The Black Wireless Doorbell features a minimalist design and simple operation, making it an ideal choice for any home. It is waterproof according to the IP55 standard, ensuring durability and reliability in various weather conditions. Technical specifications Waterproof rating: IP55 Wireless signal coverage: 300m Transmitter battery life: up to 3 years Volume levels: 5 adjustable levels Sound level: 100dB Number of ringtones: 55 Installation Easy wireless installation Button can be fixed to the outside wall Receiver plugs into a socket for immediate use Usage Can be set to 0dB for silent operation Flashing LED indicator for visual alert Suitable for the hearing impaired and elderly Other information Expandable system: can add additional receivers and transmitters of the same model Support: 24 months warranty