April 6th, 2012, 03:37 PM
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#3 (permalink)
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A dock will use this five contacts.
The tiny hole on the top is a microphone for noise compensation.
The hole on the bottem is the microphone for speaking, I think
EDIT: I see, Baldilocks was faster
Harry
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Last edited by Harry2; April 6th, 2012 at 03:39 PM.
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