So, I thought I'd butt in and explain directional mics.. lol

More than likely he was talking to either a soundman (crowd, monitors, side throws, or all three) and was requesting changes to the onstage mix so he could hear something (most likely his own vocals) better... or less.. lots of times you have too much of something in a monitor mix.. I've never seen anyone actually have communication with the production crew like that, but it wouldn't surprise me these days.

I can't imagine that mic being used for anything else..

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