Bluetooth syncs easily with iphone. Okay so to be fair we are talking about a small, single speaker, made for wireless use. After I started using this splitter, people had trouble hearing me, and I had to resort to using the mic input on my webcam because at least with that one, they could hear what I was saying. Im going to keep them and hope they stretch and fit a little better (theyre also a bit tight) but I would not order them again. <> The sound can be improved by placing the speaker within a couple feet of a wall or better yet a corner. Arrived when it was meant to and all in all a great product. I mean, it is a heel. Sad part is the NEW pair broke in the same exact place almost a month to the day?? too late to send back. Still cant believe the price compared to much more expensive headsets. The insole does have some arch support and is very cushy - and removable.