This is the best seat cushion I have tried, and I have tried them all! The reviews noting that the run narrow, however are correct. Hes extremely happy with them and Im ecstatic that it worked out for him. There are three lights across the front that light up with each device you add to the charger. No instructions no idea how to put it together so i had to return it I realized that with a sledge hammer I could fix it and so I pounded and pounded it until it fit. This sports bra is AWESOME! They look good and are comfortable except that he does have exceptionally wide feet and the width is not adjustable. This thing holds like a champ. If that is an absolute priority for you then you may want to look elsewhere.