Waterproof wireless doorbell with LED flash, over 1000 feet range, 60 sounds and 5 levels of volume for home, office, apartment, hotel, warehouse and anti-theft black cordless doorbell

Overview55 European and American ringtones to choose from Users can choose according to their needs Flexible addition and removal of receivers and transmitters Working distances of up to 300 meters in an open and unobstructed environment: remote control over long distances, stable signals, no mutual interference. Transmitter waterproof grade: IP55, no fear of rain and dust The volume can be adjusted in 5 levels, which can be adjusted freely from 0-110 decibels. The unique silent and do not disturb mode gives you a better life experience. Operating temperature: -37 °C to +70 °C Receiver batteries: 3 AAA batteries