Dave, >>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Also, my guess is that all these basic high-quality microphones most likely sound about the same level of quality, however possibly one of them might have better noise cancellation then another one - I'm not sure which that would be ... >>>>>>>>>>>>>>>>>>>>>>>>>>>>>> I get equally high accuracy with the ANC headsets Andrea, the VXI TalkPro, the GN Netcom 405 UNC and the discontinued Shure speech recognition line of microphones. There are some people with especially soft voices who do better with the GN Netcom in VXI TalkPro because they have a higher gain or audio output. Other people with the booming voices do better with the Andrea ANC microphones which tend to have a lower gain. People with generally average voices can use any good microphone and get equally good results. Your VXI microphone is covered by a two-year warranty. Let me know if you need a copy of your invoice (it would help if you send your last name and/or order number). -- Martin Markoe, eMicrophones, Inc. The best microphones for Speech Recognition See us at: http://www.eMicrophones.com/index.asp See, "Key Steps to High Speech Recognition Accuracy for the Mac" at: http://www.emicrophones.com/docDetails.asp?DocumentID=39