Technics RP DJ1210
As the name says, they're dj-headphones and brilliant at it. They close off the outer world really good, sound is great and I have to lower the volume down almost always when I'm playing after someone else. Meaning, their headphones suck compared to mine .. Or maybe their ears are fucked already... but really, I bought mine after having used Supergroover's a few times and I can't see I regret it.
Except... these days I'm working behing my computer quite a lot, in the library, and after listening to music for longer than maybe an hour and a half, my ears get hot and painful and I have to lay em down for a while. So, not as good for listening but definitely great for dj-ing!
What's your weapon of choice and why? Just out of curiosity ...