1.Rechargeable Lithium Ion Battery (1500mA) Up to 10 days of use on a full charge or up to 5 months of use with the backlight off. Connect up to three devices 2.Backlight automatically illuminates when hands are near the keyboard 3.Power on/off button Caps Lock and power indicator Compatible with Logitech Flow-enabled mice 10 meter wireless range 4.Optional customizable applications Logi Options+ 4 support for Windows and macOS Note: FILEVAULT 5.FileVault is an encryption system available for some Mac computers. 6.Compatibility Bluetooth Low Power Requires Bluetooth Low Power technology Designed for Intel® Evo laptops Windows® 10, 11 or higher macOS 10.15 or later Linux® 7Windows and macOS ChromeOS 8Windows and macOS iPadOS 14 or later 9Windows and macOS