... PCs, IPAd player device.•2.simple and practical, unique design, beautiful and convenient appearance, light weight, built-in lithium battery, mini USB ... including Packaging include:a. An audio input line,b. A mini USB to USB charging cable.Carton size:280*190*20 ... power: 4Ω3W * 2 super slim 3 in 1 (Wireless Bluetooth Keyboard+Aluminum Case+iPad2 Stand) Aluminum bluetooth keyboard for iPad 2/3