I assume you are asking for the purposes of using Dragon Medical. Highly recommend going to
www.knowbrainer.com where Lunis Orcutt has done a fairly extensive microphone comparison by type.
Best,
James P. Clayton, M.D.
Disclaimer: I have no financial or personal interest in Knowbrainer, Lunis Orcutt, or any of his employees or ancillary businesses. I have been a satisfied customer of Knowbrainer.
