I was seeking a "Bluetooth" microphone for use with Dragon Naturally Speaking 10 - speech recognition software. I found the 975 to be an elegant design and the product worked superbly; however, for me the earpiece did not hold securely (due to do with the shape of my ear). I discussed the problem with Plantronics the manufacturer who suggested their Voyager Pro product would be a preferable solution for me. The return of the 975 and the supply of the Voyager Pro product were most efficiently handled by Amazon. I am delighted with the Voyager Pro product, this does not in any way detract from 975 product which I'm sure will suit a very large number of users. Both 975 and the Voyager Pro work extremely well with 'Naturally Speaking 10'.