The headset fits perfectly and there are 2 different in-ears. Once normal for Sport and even extra-which for swimming. Both in different sizes. Charging I let the battery overnight and then he holds just over 8 hours. However, unless your radio uses not quite 3 hours.
Before it goes into the water, the headphones should be already set up. Is Once water in the ear, it does not sound as good as without. I also use a swimming goggles and thereby the headset is once again held in addition, what I just find it very beneficial in freestyle or back panels. While he sits tight, but nevertheless I have to lose always fear him. I find it very pleasant to him to train so.