Model : J8620 (DC)

Power source : Doorbell works on 2 x AA battery (not included) while the remote switch works on 12V 23A cell (included).

Operating range : 6 meter in open space.

There are 32 music melodies that you can select by just pressing the button on the bell.

Easy to mount on walls or just use any double sided tape to install.

Country of Origin : China.