This easy to install plug in digital door chime has a wireless range of up to 80m & the bell push requires 1 x 12V
A23 battery which is included. It comes with 16 different melodies to choose from & can be plugged into any mains
socket around your home. As this has a plug through socket, it then enables you to use the socket that the chime/
receiver is plugged into without having to unplug the doorbell.