Type with confidence on a keyboard crafted for efficiency, stability and precision. Backlit keys light up the moment your hands approach, and automatically adjust to suit changing lighting conditions. The creative input dial revolutionizes the way you work by giving you instant access to the tool you need, the moment you need it. Touch the dial to instantly access a menu of functions, tap to change function, and turn to change the selected function’s value. The intuitive dial adapts to the app you’re using – keeping you in your flow and completely focused on your work Connectivity Technology: Logitech Unifying 2.4GHz wireless technology|Bluetooth Low Energy technology; Software Support: Logitech Options on Mac OS 10.11 and above and Windows 7 and above; System Requirements: Internet connection for software download|USB connection:|available USB port required|Bluetooth connection:|Bluetooth low energy technology ready device with keyboard support required (Bluetooth HID)|Logitech Options on Windows 7 and above macOS 10.11 and above. 10m wireless range,Wireless encryption 2,On/Off power switch,3 connection indicator lights, Caps lock indicator light,Battery indicator light,Rechargeable with USB type C,Compatible with Logitech Flow enabled mice.