The constant squabbles have left him tired of finger-pointing, he said.

WSJ: Voters Grow Weary of Washington's Drama

One earpiece holds a proximity sensor, which if it's pointing at your ear, pumps out the left-channel, if it's facing away from you, it pumps out the right channel (pictured).

ENGADGET: Self-aware headphones switch channels depending on which ear they're in (video)