So I can't say much other than I had these puppies on. They were glorious though. So much better balanced, the new ear booms are longer and fit better, and they slimmed down the electronics nicely. By far the most impressive pair of electronics I've tried. Even if you don't use them for sport, they're just a gorgeous pair to look at. And another plus, you can actually fold them up unlike T2 and OROKR.