Flylinktech Pink Leather Case with Bluetooth Wireless Keyboard for Ipad2&ipad3 Perfect designed for iPad 3rd / iPad 2. 2 in 1, it can both as a iPad case and a keyboard. Continuous standby for 100 days, if you use 4 hours everyday that you can use 20 days. Built-in Lithium Battery (450mAh which can last for about one week). You can use this keyboard with most of devices that have bluetooth or USB adapter.