Where is the Thunderbolt Display's microphone located, and what are its specifications? There is a mesh above the camera on top of the display. Is that it?

I wonder if it's omni-directional or listening towards the front of the display.
I can't find any information about the location or specifications on apple.com or elsewhere.
According to the iFixit teardown (see step 19) the microphone is indeed located above the camera behind the mesh. No word on the specs.