Wireless Charging Back Cover/Back Door ONLY for Samsung Galaxy S3 I9300 , Marble White; A Separate Palm Touchstone Charging Set (including Dock, Adapter and USB Cable) is Needed! One time upgrade your Galaxy S3 and enjoy the wireless charging feature. Stylish magnet holding feature, charging dock will hold your phone in position. Minimized design on charging dock, significantly saving your desk space. Modular designed charging set, easy to replace any parts with low life time maintenance cost. Works with slim phone case (not thick protective case), won't affect NFC feature.