These headphones offer good support. I think I have a man's ears standards (neither too large nor too small ...) and they take PERFECTLY during my sessions of jogging or rollerblading. They never fall down during my effort, or even away from my ear. It holds well.
As for comfort, it's okay to be perfect. It must be said that the headphones have a quite large diameter, which can become painful to the ear. But frankly, it's okay, I have already seen worse. Personally, I have no problem: they are comfortable to me.
Can optionally add a pair of foam (not included), but personally, you name it.
In terms of audio quality for only 10, it holds up. This is an entry-level headphones, so we must expect to have a clear sound, with low back. This is the case: the mids and the highs are transmitted relatively well, but for the bass, a light tap equalizer is required. They saturate at a certain noise level, but below this level, it's pretty hard.
Level finishing, the helmet seems relatively good quality for the price. We'll see how he holds! For convenience, I started to use these headphones about June 1, 2012. I do sports (skating and jogging) at about 10 hours per week, and for now, no problem for my Philips. When they let go me (if indeed they it rip me, the buggers!), I will modify my comment.
As long as I do not edit my review is that they are on their way.
For sports, I recommend these headphones.
PS: Today, February 3, 2013, I update my review: my headphones are still alive! I had some irregularities (the 10H / weeks have not always been kept), but thank you god, they are still alive.
By cons, Amazon Doppe prices ...
