1,Unique design, solid structure, 2,Portable, ... time: 135Hours 4,Standy time: 90day Folding Protective Aluminium Bluetooth Keyboard for iPad 2 / 3 H5088Packaging & Delivery : Packaging Detail: ... current:<5.0MA,Operation Voltage:3.0-5.0V Standby time:150 hoursOptional color: sliver black / silver whiteBritish keyboard:10 ... 6(H) mmWeight: 295±30g Aluminum Case + Wireless Bluetooth Keyboard for iPad 2 / 3