I've been looking for a good sound in-ear headphones for my MP3 player. Unfortunately, I was disappointed. From a processing perspective, these headphones is very good; the idea of the flat cables prevent tangles that occur frequently at other headphones before. Here is really nothing to complain about. The deep bass and the centers are free of distortion again. The music sounds unlike my other headphones not tinny, special very powerful and dynamic. It needs some getting used to again. However, the high sounds fall away completely. Simply missing. That bothers me very sadly. I tested four different MP3 players to be ruled out that only a particular device can not play high notes. Unfortunately, I was the heights at any of my players heard (Sony, Apple, Samsung, Grundig). This is very annoying. For this reason, I have in-ear headphones sent it back to Amazon. Oh yes, when something touches the headphone cable, the noise is added directly to the ears on. I think this is due to the design of these headphones. And one more thing: man must first of all get used to the in-ear supporting manner. This takes a few moments. But if we have become accustomed, you will benefit from strong (not exaggerated) bass and warm mids. The outside noise remain outside. As far as actually a good Höhrer until the lost heights .... Too bad. But I will certainly choose again an in-ear headphones from Amazon; I just do not know what.