[Quiet Man Cometh]

Those are cute! I think a pair would be neat but kind spend too much superfluous money now, ;).

My brother has a game that runs on brainwaves called Midn Flex. You basically run a ball through a mini obstacle course with fans by controlling the power with brain activity. Judging from the way the game reacted to me, my ears would be upright, all the time.

Oh and by the way, rechargable batteries don't have the life that regular batteries do in my experience, unless they're making them better now. My CD player could run on regular batteries with me flipping buttons all the time on regular batteries for about 8 to 12 hours. On rechargables it would run from 2-4. I gave up with rechargables. Same with my game boy.