Frank, >>>>>>>>>>>>>>>>>>>>>> i saw your post and hope you dont mind me asking you this directly you may forward it to someone at your company if you feel they have the answer. >>>>>>>>>>>>>>>>>>>>>> There are only 3 of us and I am the answer man. >>>>>>>>>>>>>>>>>>>>>> Im currently using a Plantronics USB DSP 400 for my voice work and think it works good (Macintosh) - but i see you dont list them on your site is the Andrea ANC 650 you sell that much better of a mic than this one have you tested the plantronics? I of course dont want to duplicate what i have now in the way of results by another mic (If quality-results are the similar). But if this andrea is a better mic for the price you ask then i would want to consider it. >>>>>>>>>>>>>>>>>>>>>> I am Cc'ing my partner Michael as he does the shipping and keeps the books and this may relate to him. We tested the Plantronics DSP microphones last summer. They were actually quite comfortable and quite nice in terms of aesthetics. However, in terms of noise cancellation and accuracy they were a small step behind the Andrea and VXI headset microphones. We do say your mileage may vary. Please feel free to order an Andrea ANC 650 and an Andrea USB sound pod and try them for two weeks. We usually charge an $8.00 restocking fee. If you decide to return the items in the same condition you receive them we will waive this fee and the only cost will be the return shipping to get it back to us. Martin Markoe, eMicrophones, Inc. The best microphones for Speech Recognition See us at: http://www.emicrophones.com/index.asp New to SR? Read "Mac Key Steps to High Speech Recogntion Accuracy:" http://www.emicrophones.com/docDetails.asp?DocumentID=39