... live status,make up room,no disturb,touch key door bell five function,light indicate. 5 in 1 touch key ... live status,make up room,no disturb,touch key door bell five function ,light indicate .Don't disturb and make ... of don't disturb in the room again ,door bell will can be used .Technical Data:Strong current: 220V ... 10—95%RHTouch key life:Capacitive unlimited touch key. Multi function hotel door bell