... -in lithium battery, mini USB charging port, ready to charge for the host machine.•3.Product size: 240mm *150mm * 45mm•4 ... *33*50CMGW:655g,NW 555gQTY: 20PCS/cartonCompatibility Adjustable floor stand for tablet PC & ipad/ipad 2, movable, flexible, hands free, aluminum ... . Audio output power: 4Ω3W * 2 3 in 1 (Wireless Bluetooth Keyboard+Aluminum Case+iPad2 Stand) Aluminum bluetooth keyboard for iPad 2/3