Got these primarily for DJing but was disappointed by two things:
The hear cups aren't big enough to encase and isolate the ears (and I have small ears:)
And secondly, the cups don't angle to adjust to the side of your ears, and thus they don't make use of the full range of the speaker drivers.
If Philips addressed these two issues, they'd have a real winner on there hands. I have a Philips 5.1 system, and it never fails to impress, so maybe my expectations were too high, and I guess they are not too bad for less than £20, but I wish I had got myself another set of Seinheiser 215HDs, which were excellent quality and value, and I would recommend those for DJs and musci lovers alike.