My fiance found a pair of these on the ground on campus the other day... I was reluctant to even put them in, as after browsing here and falling into a deep lust with Sennheiser products like my HD595's while appreciating what 20 or 30 bucks can get you in the IEM department (once you take a few minutes to equalize) such as my Fiance's CX-475's, as well as hearing a pair of skullcandy's once before for the ten total seconds I could bear it, I was pretty damn convinced this brand would give me ear/brain cancer.  I had her guinea-pig them for me...

I bought this player a few years ago, and wish I still had it... This player sparked my interest into higher quality music, and I absolutely loved it.   There are a few different options on the O2 for storage space, 32 gigs being the biggest, but all are expandable via an SD card slot.  The audio quality was great, I had it paired up with a then new pair of Sennheiser HD485's  and the battery lasted AGES. Well over a hundred hours of music, and something like 8-10 hours of video. The player supports just about any format you can think of for...