I have be buy the Sennheiser PMX 60 for a few year because they stay in place no matter what activity I be do and they sound quality while listen to talk radio . well , after use my philip headphone , I be not go back ! these headphone be much less expensive , stay in place and have superior sound quality . I use to switch to a different headphone to listen to my mp3 player but can now use my philip for both . the only thing I can not comment on be durability and from read comment by other buyer , they may not hold up . not know about durability be why I give 4 star instead of 5 .