maybe it be just I , but these have not live up to my expectation . the sound do not seem that much better than the ear bud that come with my mp3 player . on top of that , I can not get they to stay in my ear . I have really small ear canal , so again maybe it be my fault . even when use the smallest set of ear plug I can not get they in fair enough to block out ambient noise and they fall out every time I move my head . I would not recommend these headphone for people with small ear opening .