Style: Leonel // Color: Black-Royal I?ve had no issues with battery life either, I?m still going on a single charge since I got them and have used them for approx 4 workouts so far this week. Only had them a week. Bottom line is Im not currently using it as much as I expected or hoped I would, but if you have the right setup (and pick the right resistance) this should work for you. 5 but it is more like a 7. It was cheap and it holds my phone nice and sturdy. Keine nennenswerten Probleme! Someone needs to look at the design on this color of lulu. I wasnt expecting these to be so narrow, which is great for people like me who have skinny feet. The inner orthotic have great arch support.