... ,Working time: 135Hours 4,Standy time: 90day Folding Protective Aluminium Bluetooth Keyboard for iPad 2 / 3 H5088Packaging & Delivery : Packaging ... protection Factory produced, completive prices, fast delivery Specification : Bluetooth 3.0 interface standardFrequency: BT2.4-2.4835GHzReceiving sensitivity:-78dBm ... W)*11.6(H) mmWeight: 295±30g Aluminum Case + Wireless Bluetooth Keyboard for iPad 2 / 3