• Working together with the transmitter. Just press the button and the doorbell will receive a signal, you immediately know that someone is coming
• Higher penetration without worrying about signal obstruction ensures you will never miss a visitor, even if you are a few rooms away or on another floor
• Easy to Install. Just plug the receiver into a socket, and mount the doorbell transmitter on the wall or anywhere you want, the effortless installation
• Features 36 melodies and 4 level adjustable volume. It meets your different needs. Setting different ringtones for different receivers can let you know which door the visitor is at
• Dustproof and waterproof, suitable for any home, townhouse, apartment, office, school, hospital, hotel, etc

Specification:

• Music alarm: 36 music optional
• Volume: 4 levels of volume adjustable (can be adjusted to silent mode)
• Transmitter power supply: no battery required
• Receiver power supply: plug in the power supply (110V-220V)
• Transmitter size: 70*46*24mm
• Receiver size: 91*59*25mm
• Remote control distance: 150m (straight-line distance without obstacles)