Bought for a galaxy S3, good surprise unpacking the product, it is not "cheap" beautiful and easy to implement, it does what it does. This puts a bit more time than the wired charging, which is quite normal. The receiver slightly deforms the original hull S3 "at the lens of the camera" but no difference with the flip cover. I think the receiver to purchase S4 now that I have tested the product. Brief happy with my purchase that is two times cheaper than the original.