I originally post the review that be below this paragraph . my only complaint have be that one of the hook have fall out easily . the company that sell these saw my review and immediately send I a new pair . I be very impressed with the customer service I receive and be enjoy my intact pair of earbud . -------------------------------------------------- I run a lot , and these earbud do a good job of stay in my ear while provide good quality sound . because the hook that go around you ear come off so easily , I end up lose one during a outdoor run . there be a extra set of ear hook , but because the base fall out along with the hook , I can not put one of the extra hook in . however , the one earbud without a hook be stay in my ear well , so I do not think it need a ear hook . this be because the earbud come in three different size , so the one I use fit my ear canal well .