Mophie solved a problem that Apple created for itself when the headphone jack was eliminated & squeezed over into the Lightning port. With their new battery cases for iPhone X, Xs Max, Xs/X and XR, you can charge the phone & listen to music with wired headphones at the same time. These new juice packs provide Qi wireless charging and to charge the case itself, you can either plug it in with a USB-C input or place it on a Qi-based wireless pad.