Easy typing, even in the dark - Type effortlessly in all lighting conditions. A sensor detects the amount of light in the room and automatically dims or brightens the backlight to suit your needs Keyboard and mouse all in one -The K830 streamlines navigation in the living room by combining these two devices into one. The touchpad is smooth and responsive with accurate cursor control and enhanced gesture functions. 10 m (33 ft) wireless range - Lean back and browse from your couch or bed with Logitech Unifying or Bluetooth Smart technology. Compatible : Windows 7, Windows 8, Windows 10 or later Android 5.0 or later Chrome OS USB port or Bluetooth Smart enabled computer.