Multi-Device Productivity: Pair your wireless keyboard with up to 3 devices and easily switch between them; Logitech Options lets you customise keys, create hotkey shortcuts and receive 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 Bluetooth keyboard recognizes the device it's connected to so all keys and shortcuts are exactly where you expect them Reliable Power: This portable multi-device keyboard comes with 2 pre-installed AAA batteries which can last up to 24 months with a built-in auto-sleep function and an on/off button Keyboard Certification CE, FCC, CB On/off