... convenient appearance, light weight, built-in lithium battery, mini USB charging port, ready to charge for the host ... machine.•3.Product size: 246 x 190 x 8.5 mm •4.Can play four hours ... include:a. An audio input line,b. A mini USB to USB charging cable.Carton size:280* ... 3W * 2 super slim 3 in 1 (Wireless Bluetooth Keyboard+Aluminum Case+iPad2 Stand) Aluminum bluetooth keyboard for iPad 2/3 ...