This wireless door bell can provide solutions in many situations. Do you have a house far from the fence and do not want to do cabling, install a cable duct? Do you have to drill a hole to drive the cable out of the front door? By purchasing this bell, you can forget all of these. Simply insert the battery in the switch unit and secure it to the desired location. Easy and quick to install, we recommend it for home use and offices. After connecting the indoor unit to a power outlet, the device is ready to use. Thanks to its simple design, it does not change the decoration of the room. With 32 different melodies and 3 volume levels, everybody can find the best setting.