* 4 chord, 20 musics
* Lines grace, light touch button, various kinds of color for your choice, can bring you a sence of vision enjoy from lines and colors.
* Simple, vivid and wireless installation design avoid troubles and save money when installation and don't effect decorate environment.
* Remote control range up to 100 meters in the open air and high-rise building.
* All day long anti-interference system, encrypted with 100000 digital coded radio signals, pretends the doorbell from interferences outside or between neighbors.
* Energy saving design of environment protection, the battery inside the button can last one year (20 presses per day).
* Delicate smart part, make the doorbell a saluting angel of dwelling house, office block, hotel, high-rise building, factory and so on. You will never miss any guests.