when these in-ear headphone be properly install -lrb- and get they in right be like a installation -rrb- the sound be amazing . I have hear part of song that I would never hear before . but the headphone suffer from two massive flaw . the first be that if the headphone move the tiniest bit out of you ear canal , the sound quality plummet . this be a huge problem because the cord be so long that it be guarantee to catch on something and jiggle the earbud . even when wrap up and out of the way , the cord will respond to the slightest movement and pop the earbud out of you ear . this be extraordinarily frustrating , all the more so because the sound be so good . I do not recommend these headphone to active people or to people that plan on move much at all . if , however , you do not plan on move much with these headphone , you be golden . also note : that little case that come with they should be use all the time ; the earbud piece will come off in you bag or pocket and the case help prevent that . it also help prevent just whipping out you ipod and listening , since you have to undo the case and store it , but that be the least of you problem with these headphone .