AKG K702 vs AKG K701


Does anyone know what the difference in these two headphone models is? Are the K702's an upgraded version of the K701?

Thanks for any help!
ck
They are the same. The K702 has a removable wire and is in black. It is aimed at the pro world and is just more rugged.
Actually, I own both and they are different in some subtle ways. In addition to the differences listed above, the earpads are different, and slightly change the position relative to my ears. The 702's sound better to me, period. Headband is different as well- more comfortable on the 702.
Thanks very much for the input. I put an order in for a pair of K702. Should be fun!

Cheers all.