The Logitech K380 Multi-Device Bluetooth Keyboard brings the comfort and convenience of desktop typing to your smartphone, tablet and more.( Bluetooth-enabled devices that support external keyboards) Connect with up to three Bluetooth-enabled devices simultaneously and switch instantly between them. As the keyboard is compact and lightweight, you can use it to type on the device of your choice, anywhere around your home. No matter what device is connected to the K380, the typing experience is familiar and includes your favourite hotkeys and shortcuts. Two years of battery life (Battery life may vary based on your use.) virtually eliminates power concerns. You may even forget the keyboard needs batteries.