I was down until he got to what he wanted to call it. Really? Can we just choose something that isn't already tangled up in 50 pounds of sexual innuendo?
But on the topic at hand (as it were): I was hoping for some German-inspired mashup name, like "Device that allows one person to sometimes hear part of what another person is saying, no matter where they are, at least 80% of the time".
Well, now that I type that, I suppose it's not very funny. But arguably more funny than calling it "head".