Charges fast and without issue. And these have a SERIOUS issue with that. Expected to be of better quality and user friendly than others half the price but fell way short and from how it was advertised. They are great looking, very easy to use and charge quickly (can also be used while charging if you have a longer cord than is included). I was so happy I could find Jamal and order the sleepers online. I literally cannot believe how good they feel. I already had the navy pair last year and as they are so comfortable and supportive decided to buy another in the grey. and I enjoy the great sounds quality and noise cancelation in the great way! I?m 5?2 140 lb & purchased a medium. I put two together, but for the space I had available I overlapped them in the middle instead of placing them side by side.