The processing is a kick in the balls, the ear cups rattle and are very shaky, the headband is just abysmal, the material flexes under load when you provided it is made up, I'm just putting 6. The wiring is also not the yellow of the egg, and it is quickly becoming the cable clutter. For people not recommended with big head, because I prefer to have the headband on your head and not at the back, what bugs me badly.
For the holidays, the part is rich and then I'll give the thing or leave it go stale in some corner, luckily I have my gaming headset Creative SB Inferno, but is too good for me on vacation.
The Koss no longer buy and I advise the people prefer to another company or something to spend more money, where the processing is better hopefully.