Wireless Range: 33 ft / 10 m wireless range4 Wireless encryption: Yes4 Software Support: Logitech Options for Mac (OS X 10.8 and above) Logitech Options for Windows (Windows 7, Windows 8, Windows 10 and above) Logitech Flow
Indicator Lights (LED): 3 Bluetooth channel LEDs Battery Indicator Light: Yes Battery: 2 x AAA