Aukey® Qi wireless charging pad for direct charge to the Nexus 4, HTC 8X, HTC Droid DNA, Nokia Lumia 920, LG Optimus Vu2, compatible with all other Qi compatible devices and tablets (T20 around Black) (Electronics)
The part is lending, small and easy to connect. However, the Ladestaerke is so low that, a simple rubber Protective (Otterbox) around around mobile enough to overwhelm the thing. Sorry, but I need something with more field strength.