Aduro LIQUA-SHIELD Folio Case with Bluetooth Keyboard for Apple iPad Air (Retail Packaging) Pink Bluetooth keyboard delivers wireless operation and one-touch access to iPad media and setting functions such as home button, volume and brightness Keys are spill-proof and also protects iPad screen from scratching when closed Charging time: 4-4.5 hours; Estimated uninterrupted working time 90 hours. Bluetooth technology connects quickly and easily with the push of a button Charges via inlcuded USB cable.