... 127.6*7.0MM Mapplicability For IPAD system,compatible andros and Microsoft systemFEATURES: Bluetooth 3.0 Keyboard Aluminum alloy ultra-thin ... what you want.High performance rechargeable lithium battery,easy for charging,2-hour charging up to 1-minth usingDIMENSION( ... *W*H)248.3*127.6*7.0MMSYSTEM REQUIREMENTS:For IPAD system,compatible andros and Microsoft system Elegant bluetooth keyboard for galaxy