I'm wondering if someone has tested Sennheiser MM 550 travel headphones. They are new and the price is quite high so there is a chance that they are ok.
I recently lost my PXC 450 on airport and I really liked those, so I'm especially interested in pros/cons compared to PXC450. But since I found pretty much no useful info about MM 550 by googleing, all opinions/info is more than welcome.
For some reason I can't even find many places that sell MM 550.