87-key flexible bluetooth keyboard lithium battery 87-key flexible bluetooth keyboardSupport iPad 2, iPhone ... , iPad and Galaxy Tab P1000/P7500 etcSupport computer based on Windows XP, Win7, Vista and Mac etcFlexible, foldable, roll-up, waterproof ... patent no.: ZL200930290711.7 75-keys ipad / iPad 2 Bluetooth keyboard portfolio