Yeah, I was shocked, but it is in fact possible. The sound quality is above average for buds, clearly moreso than the standard ipod ones. The play loud and do a decent job blocking out outside noise. Best part? Maxing out at 20 bucks, you can afford to rock a number of them if they get lost/destroyed/stolen.
However, they do NOT have in-line volume control, which wouldn't have bothered me so much if they were upfront about it on the site. Also, as another reviewer mentioned, the buds do sometimes have a tendency to fall out if your hat isn't pulled down over them, especially trail running or skiing without a helmet.