Ultra-thin Aluminum Folio Backlit Wireless Bluetooth Luminous Keyboard Stand Case Cover for iPad Air iPad 5 (Black) Ultra-thin Aluminum Wireless bluetooth keyboard stand case cover for iPad Air /iPad 5 .Built-in rechargeable lithium battery. Energy saving keyboard sleep mode .Luminous keyboard with color backlight, can freely adjust brightness, iPad display stand for easy viewing .Special function keys help you get more done from the convenience of your keyboard