An different approach to charging
From my research the phone has a 300mAh internal battery and the case a useful 3400mAh. The phone is held in place by soft rubber surround rather than any clips, making it easy to get the phone out. The case charges the phone quickly using wireless induction and has plenty of capacity to extend phone use. Only downside is you can't use the rear camera whilst in the case charging as there is no camera lens cut out, therefore not a permanent case for most people. Good but quirky!