... bluetooth chip 4.Operation distance: 10m Bluetooth keyboard for ipad2 case:*2-in-1:Wireless Bluetooth Keyboard + Folding Leather Protective ... for windows, for Mac, for Linux, for iPad, for iPhone 4G, for iPhone 3GS if upgraded to IOS4.*Special layout for iPad ... type.*Quiet keystrokes.*Stylish, and high grade protective PU leather case/stand.*Lightweight, compact, easy to carry and handle.*Easy operation ...