I don't know for certain, but from the looks of it (the "headphone" itself and the look of the cable coming from it), I strongly suspect Rob is...
Full show, enjoy! http://www.youtube.com/watch?v=W1_O3fr74N4 (better quality than the previous full show link posted above)
In case something happens to Qwerty95k, I've got the entire show in one clip too (not currently uploaded as I can't upload long YouTube videos to...
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