S4 SlimPWRcard - 0.5mm Ultra Thin Qi Receiver Card Module for Samsung Galaxy S4 IV compatible with NFC function, recommended to use with QiStone+ & WoodPuck or KoolPad Qi Wireless Receiver card fits discretely under your existing Samsung S4 cover to enable Qi charging with any Qi charging pad (pad not included, the prefect companion Qi pad is the Fonesalesman QiStone+, Koolpad and KoolPuck). Just stick onto your Phone, under the battery cover. It is Light, Ultrathin (now only 0.5mm) & Inconspicuous. Slot to enable easy access to your MicroSD spring release function. NFC support with no interference with NFC transfers. Qi technology can be used with all non-metallic cases and covers under 5mm thick. Compatible with SGH-I545, SGH-i337, I9505G, I9515, I9500 and other I9505 models N4 SlimPWRcard fits effortlessly behind the back cover of your Samsung Galaxy Note 4. Once fitted, the Note 4 is ready forQi wireless charging Now you can charge your phone using any of your favouritewireless chargers It isl ight, ultrathin &amp; inconspicuous NFC coil built in to support NFC. Compatible with S-view Flip cover and maintains S-view functions. Not compatible with Samsung Galaxy Note Edge Qi technology can be used with all non-metallic cases and covers under 5mm thick Thinnest Receiver on the market, will add minimal bulk to your phone and enable you use normal cases for the Note 4