Multi-Device Productivity: Pair your wireless keyboard with up to 3 devices and easily switch between them: Logitech Options lets you customize keys, create hotkey shortcuts and get notifications Slim, Quiet Keyboard: The Logitech PerfectStroke key system provides quiet and precision typing, solidly designed with thin, laptop-like, carefully crafted concave keys and shortcuts Reliable Connectivity: Connect your device via Bluetooth or Unifying receiver: this keyboard also features an integrated rubber cradle that carefully holds various devices at a comfortable angle Adaptive Layout: Compatible with Windows, Mac, Android and iPadOS, this compact keyboard recognizes the device it's connected to so all keys and shortcuts are exactly where you expect them to be Reliable Power: This portable multi-device keyboard comes with 2 pre-installed AAA batteries which can last up to 24 months (1) with a built-in auto-sleep function and an on/off button