No Bluetooth or USB connection.
This app is amazing when I am at home on my own network... which never. Right now I am at the hospital with my iPhone 4S and MacBook Air running Dragon Dictate inches away from each other, yet they cannot connect over the secure hospital network. They both have bluetooth, not supported. I have my USB cable in my briefcase -- wouldnt it be great to use my iPhone as a mic and charge it at the same time? Not supported. The wifi restriction makes this app useless in the work world.
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Dragon Remote Microphone, v1.0