I bough it on ebay for $79.00 Here is the link. The seller is very responsive and I got it within a week in perfect condition.
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http://www.ebay.com/itm/150660646531?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1439.l2649#ht_2145wt_1028)
I have a Samsung Galaxy S android phone and it paired with it right away with no difficulty at all. It also comes with a USB bluetooth connector that is already paired so as soon as you plug it into your computer it is ready to go, windows 7 picked it and installed the default drives. There is also a batter indicator icon which is located on the windows notification bar. The unit has built in voices that tells you when it is turned on, what it is paired with, the battery level, if you are in or out of range and a few others.
You can download software from there site which lets you access the sensors in the unit, this gives you some extra features, like sensing whether you have the unit on your head or not. It pairs with both the computer and phone at the same time and will auto switch between the two depending on which one the call is coming in on. So far I have not had any issues and no one can tell the difference between the phone and the headset.
I original got it to work with Dragon which it did perfectly, and so far it seems to work just as well with Vox.
The unit has a 6 hour constant talk time, but it also has a button on the mic so you can put it in standby mode which seems to last for days.
the same button is used to switch between computer and phone.
Here are some youtube clips I found that will explain it a bit better, so far it works as advertised.
Here are the links:
Plantronics Voyager PRO UC v2 Bluetooth headset with Skype integration
http://youtu.be/mqnpTSETnKkNew Plantronics Voyager Pro UC Quick Review
http://youtu.be/bxh1yS6G1P0Plantronics Voyager PRO UC V2 Review
http://youtu.be/aO-Sh5_6Q4AThis video was a bit misleading, they have the camera zoomed up on the unit, so when I got it I thought it was going to be huge on my ear, in fact it is very very small and light, I also wear glasses so I thought it would be uncomfortable but after wearing it for a bit, I forgot I had it on and took it off so that I did not look like one of those guys that always wear these things.
One small thing that might not matter to anyone but me. It does not have the blue light blinking all the time, which I hate when I am at the movies and someone has there headset on with the bilking light, I can see it bilking out the corner of my eye, very distracting.
+Update: Yes you can switch between Wide and Narrow band in the bluetooth settings. I always have it on Wide so I have no idea what the difference is on Narrow.