I need to sports music, mostly I go running or go skateboard. My old MP3 player is broke so had to quickly forth a new. The player arrived quickly and was safely packed. The player is very light, because it actually consists only of plastic. After he was charged and music packed I tested him directly. I noticed that the clip of the player does not have great pressure, which has then confirmed while running. There is now even a bit colder outside, I still run in a track jacket. I make between smaller exercises like sprints or run stairs. It has torn my jacket the players of the trousers. Since the player is so easy it does not fall to the ground but the headphones catch it on: D well done, I find the service. One can easily switch during exercise because you can feel the buttons at once. With my old MP3 player I had to take it off first and then I could only songs forwarding on because you could hardly feel the keys when running. On the whole, I am very satisfied. If the clip a little more pressure, so that it does not so easily from clothes falling 5 Stars. (In my brief exercises while running, I put him now always short in your pocket or jacket pocket).