I spent over an hour in the bathroom and in the end it only consumed 10 percent of the battery. The functionality options on this are endless, you can have folders and hot keys for separate programs/games etc. ITS GOOD FOR BASIC LISTENING STRICTLY NOT FOR MUSIC FANS JUST TO TALK/ATTEND CALLS ITS GOOD. When I tried them on I saw they were VERY well made & strong. Regularmente soy talla M,y con la metida a la secadora quedó Perfecto. They would have been perfect, if only they were reliable, im not the only one with a non-working bud. So if neither of them works for you then read on! BE WARNED. I am in search of the perfect black/charcoal hiking shoe. Tremely happy with this deal?experience.