From what I understand, The Samsung Ativ has two microphones, one is for noise cancellation. Multiple people have said that my voice is really faint on the other line. My voice is fairly ambient. So I assume my voice is mistaken as background noise (Just an assumption, I'm not sure how the algorithm or device works in particular) I've been using the earset that came with phone, works perfectly fine, but I was wondering why there is no kind of microphone sensitivity option. If there is one, where would I find it?