Incipio ClamCase Pro for iPad Air 2, ClamCase Pro Bluetooth Keyboard Case [100 Hour Playtime] for iPad Air 2 - Smoke/Aluminum Compatible with iPad Air 2. Charging via power adapter or USB connection. Micro USB to USB cable included. Quickly and easily power on/off keyboard with manual power switch. LED indication lights provide information on battery life, pairing, power activation, charge and Caps Lock. The lithium-ion battery and Bluetooth 3.0 chip allows for months of use on one single charge. Patented hinge with infinite viewing angles