These are great for anyone who might have issues with arthritis or back problems that linit their ability to tie conventional lace-up sneakers. I love these shoes so much. Had to wait a while for them to arrive but the company as very quick to respond to my inquiry. better than D8, X10 Volume with mínimal distorsión but vocal were behind on X10 maybe for emphasis on bass. I have shoes from Walmart that cost less than $10 that have lasted longer. Loads of bass & crystal clear, even at max volume. at price too. It paired and worked as expected with my mobile phone, however when I tried to use it with my PC thats when the trouble started. So I decided to give them another try and bought another one,which doesn?t play without a lot of stuttering. Also, you can wear them as casual shoes or dressy shoes, which is nice.