Package contents:1 transmitter, 1 receiver

Latest Technology & Battery-free:This wireless doorbell is self-sufficient, requires no cables and batteries, protects the environment and saves your money. When the transmitter is pressed, it generates electricity itself and sends a stable signal to the receiver. Never worry about damaging the wall or the doorbell when changing the battery again!

38 Ringtones and 4 Volume Levels:Our wireless stereo doorbell speaker provides a rich and clear sound. It offers a wide range of 38 ringtones and 4 volume levels (including silent) for your personal taste. Press and hold the volume button to return to the first ringtone (dingdong). With a memory function, the radio clock remembers your last settings after a power outage.

NO crosstalk & False alarm:This wireless doorbell has strong penetration power and anti-interference. The range for multiple obstacles is up to 152 m (500 ft) and in open areas up to 305 m (1000 ft). It does not interfere with other devices in your home or your neighbors, ensuring that you never miss a visitor even if you are a few rooms away or on another floor.

Easy installation:Just plug the mini receiver into a power outlet and mount the transmitter on a wall using the included hardware, including 2 screws and a piece of adhesive tape.

Our doorbell is suitable for homes, apartments, schools, villas, offices and more. This battery-free wireless doorbell is a nice Christmas gift, birthday gift or anniversary gift for any home or business owner.