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What is the third microphone for?

• bluthru 14y ago
  Top is for noise cancellation, the back is for video.
• bulltale 14y ago
  Better noise cancellation and voice recognition.
• deleted 14y ago
  [deleted]
• bugmenot 14y ago
  That's the one put in at the behest of the NSA and DHS. You are not supposed to know about that one. You can't turn it off. Physically blocking it is a violation of the Patriot act. The idea started with Onstar and will now be an FCC requirement on all US phones.