They hold their charge without sounding staticky even when the battery runs down. Love, Love, Love these shoes. Also, she usually wears a wide but there were no issues with width. If I were at a store looking at this, I would have tried a different piece or not buy it at all. Play with it a bit before doing it for real, so you make sure which holes are the correct ones (not all will be used). I wish these sandals work for me because they sure do look nice! But you really don?t notice until your look at them up close. ???? 5/10 (il microfono potrebbe avere un volume un po più alto). but they dont need to appreciate my taste in music.