Summary: As other customers have posted here the sound quality is good but the earphones do not stay together. I bought a pair which arrived with the left earpiece already popped out, as has been said it seems to be the glue is where the fault lies. I ordered a replacement and within two months the same thing happened. Frustrating as hell.
Summary: Sound is ok (although base is good - deep and full), but the main issue I have is that the sound escapes easily for pople around you to get easily annoyed (Mid volume level) so although I want to put the music volume up, I also want to be mindful of others around me.
Summary: The quality of these headphones are amazing however the integrity and build quality is horrific. The first item i bought had the left headphone not glued properly. Amazon kindly offered a refund however this item lasted less than a month before the same issue, the earphone head "pops" out in both sides so i got a refund. It was a waste of time but the sound quality was great as for the 2 stars.
Summary: As soon as I opened the package, it broke into 2 pieces round the head of the left earphone. Very poor design as it seems that 2 units are glued together to make each earphone. Here the glue seems to have failed. Not very promissing if you hope to keep it several years. Having said that, it wasn't well packaged and I suspect it was reconditioned.