like monster 's premium cable , one of the most striking thing about iSport in-ear headphone be durability . this waterproofed headphone exude quality from end-to-end with flat but very durable cable to earpiece themselves . this thing will last beyond most earphone . and consider how quickly I go through each earphone , durability may be a reason enough for many listener . first the fitting . this be perhaps the most crucial and often controversial aspect of in-ear headphone . despite have 4 different size clip and ear tip , none fit properly in my ear . smallest be perhaps the most comfortable , but do not provide enough seal need for deep bass . next one sound a lot better with impressive deep bass good and smooth yet detailed upper-end . unfortunately , it be much more difficult to align properly and become uncomfortable after 30 minute of listen . so in the end , I reluctantly go back to the smallest tip . the good new be that it still provide pretty good sound -lrb- minus the deep bass -rrb- and much more comfortable to wear . compare to my reference in-ear headphone ,  etymotic hf3  it be certainly very good for casual listening but I do not recommend it for critical listening -lrb- for that , I use closed studio set such as  audio-technica ath-m50  that say , isport feel much more durable -lrb- my hf3 start fall apart after few month of use -rrb- at this point , still look brand new after 3 month of extensive and often abusive use . built-in microphone work pretty well , although it do not quite sound as full as  Apple In-Ear Headphones with remote and mic  the remote function work well but center play\/pause button offer less satisfying feedback and sometimes fail to register . all in all , isport be a great choice for those look for durable waterproof in-ear headphone that provide good audio quality . depend on you ear , it may actually sound pretty great .