I bought these headphones as I find conventional ones fall out when running ir cycling. Also I liked the fact that they purport to allow you to change volume/skip tracks from the control on the headphone wire. They're certainly very comfortable and light and had I worn them for more than a few minutes, I'm sure it would have been easy to forget I was wearing them. Despite the product description however, the sound quality is very poor with the bass non-existent. Even with the bass boost selected on my ipod, it made no difference whatsoever. the controls to skip tracks/adjust volume did not work either. i treid them on my ipod as well as my blackberry but they did not work with either device. If you want a comfortable and light fit then these will do. If the sound quality matters then avoid them at all costs.
Might be a discontinued product but it still works very well. The sound is clear and the buds are comfortable in the ear. I tend not to use the skip track etc controls just the volume and they're easy enough. More than happy with my choice which replaced a broken, but very expensive Sennheiser product.