I buy these headphone about 4 month ago and the first few time I use they they be great . admittedly they do hurt my ear on my first run , but I put soft foam cover on they from another set of headphone -lrb- these don ; t come with they -rrb- the next time and they be fine . so I continue use they for the next few month and then start have a problem with the sound get scratchy and cut in and out . I have a case on my phone , so I take that off , and that seem to help for a while . not long after that the sound cut out completely on the right side , i make sure there be no kink any where , and there be not , so this be irritating , but I let it go hope that the next time I use they they would be ok ; they be not . on my next run , I get about half way through and the sound cut completely out on both side . it be really scratchy for half the run and be cut in and out , and finally they cut completely out . I be sorry but headphone should not die that fast . in my opinion these be terrible and I would not recommend they to anyone . just today I be buy the Panasonic rp-hs33-g in-ear water-resistant sport-clip Earbud Headphones , so hopefully these will be better quality !