I really want to give these headphone a better rating but they be fall apart after one year 's use and be in imminent need of be replace . here be the pro 's and con 's as I see it . pro : 1 . great sound output for a earbud headphone . you will not these decibel level from ipod earbud . 2 . ear insert be comfortable , exchangeable and replaceable . 3 . actually have some amount of bass lead to a fairly rich sound . -lrb- see con for more -rrb- 4 . come with all size of earbud so you can try they on to see which you like best . con : 1 . severe durability issue . I use these earbud while run , cycling , rock climbing , and more and after a year of use -lrb- 1 calendar year as of one week ago -rrb- , the left earbud be hang by a thread . I have use ipod earbud as well as one design for run and they be still in great shape year later at do not cost $ 90 . 2 . the high end in these get really tinny at time . most earbud be great at high frequency and bad at low . these be the exact opposite . I like to listen to jazz when the mood strike I . Bass line be rich . the horn and sax can be unbearable at time . BOTTOM LINE : for casual music listener who do not expose they earbud to a active lifestyle , these headphone be a solid choice . if you be very active and demand durability from you earbud , you may want to look elsewhere .