I have hope with this product as many of the review be positive . I should have listen to the critique more . out of the box on my first run you 'll notice that if you so much as brush the wire that connect to the plug you will get static . I will say that the fit and comfort be there and as long as that wire be not touch -lrb- tough to do while run -rrb- the sound be good . after about 6 run though you realize that the speaker themselves be hold in by the fragile piece of rubber surround the speaker . once the rubber move , the speaker literally fall out . you be leave to attempt to put the speaker back in and snap the rubber around they like a rubber band . apparently I must have do this incorrectly as my right earpiece no longer work . for a $ 30 product I be not go to mess around with return and warranty , instead I be still now in the market for good headphone to use while run . my clear advice , run away from this product .