I've found the Siberia V2 headset can be loosened up by stretching the tension bands outward. It's easy to stretch them too much, and end up with a sloppy, loose-fitting headset; but, they can be tightened back up. Point is, I can wear them without pain, my head no longer feels like it is in a vise.
They are clear-sounding, moreso than my old Sony MDR-V600. Small sounds aren't washed out by game music, as I was accustomed to hearing.
The microphone is too short and lacks proper sensitivity.
Still, this set is more for kids. I'd like to replace it with the Sennheiser PC 350
, or maybe the Beyerdynamic 715575