the sound is good, well-rounded, well balanced, big bass, medium present, the highs sound end, thankfully because the ergonomics in the strict sense is really poor: too short thread, delivered with an extension which adds unnecessarily all two jack. Why not be made in one long enough? Mystery. As for the headphones: painful left side, the body headphones are so stunted that must feed his ear to achieve good stall them. From that side Sony is much better. A note: an overpack of painful plant opening, which almost require a screwdriver to reach unpacking.
EDIT: I finally decide me for a service return. This headset with questionable ergonomics make me a painful gymnastics to successfully accommodate the silicone in the ear, which, anyway, her outfit remains approximate even painful. The tip change is nothing. Listen to music with this material despite its sound quality is unpleasant. On many used marks on the years Seinheiser, Philips, Sony, JVC ... this is the first time I am dealing with such a poorly studied material in terms of ergonomics.