Multi-device Bluetooth keyboard: Universal keyboard for typing on all your computing devices: Windows, Mac, Chrome OS, Android, iPad, iPhone, Apple TV 2nd or 3rd generation (Any Bluetooth-enabled computers or mobile devices that support external keyboards with HID profile. Check with device manufacturer for details.) Easy-switch: Connect up to 3 devices simultaneously and switch between them at the touch of button. Wireless range 10 meter Logitech flow cross-computer typing: Use as a regular keyboard or combine with a compatible Logitech flow mouse (sold separately) to type, copy, paste and move files seamlessly between computers Compact mobile keyboard: Easy to carry around your home for familiar typing in any room and Logitech options for Windows (Windows 7, Windows 8, Windows 10 or later), Logitech options for Mac (OS X 10.8 or later) OS adaptive: Automatically recognizes each device and maps keys to give you a familiar layout, including shortcuts. Battery life (not rechargeable) - 24 months. Connection type: Bluetooth classic (3.0) 2 year battery life: Virtually eliminates the need to change batteries (Keyboard battery life calculation based on an estimated 2 million keystrokes/year in an office environment. User experience may vary.) 1 Year Limited Hardware Warranty