Comment Noise Cancelling is king - the review is lacking (Score 1, Informative) 194
One of the most major things about any headset is noise cancellation. If you only talk with your headset in quiet environments, then this review is a decent one.
If you ever talk in you car, this review is totally off in its conclusions.
I recently bought all of te headsets in this review, + 4 more, and took them home, took them for a drive in my car, and called my computer and recorded the sound incoming and subjectively rated the speaker.
This totaly turned the tables on the review.
I had the Jabra bt800 winning in quiet environments, but when I placed calls in noisy environments, the jabra bt800 ate itself: th same noise-cancelling software that was so good in quiet environments clips your outgoing voice in noisy areas so every second syllable disappears.
The winner in my test was one of the cheapest: the Plantronics voyager 510. It looks a bit wonky, but for intance in my car test, transmitted car noise when I first placed the call, then after I started to speak, the outgoing noise from the car disappeared throughout the rest of the recording, with just my clearly audible voice present.
The Jabra bt800 is unusable in a noisy environment for outgoing voice quality. You're much better off with a BT250 from jabra.
The sad thing is that companies like Shure or jabra don't make a bluetoth boom-mike solution (there's a guy on the web making these himself out of parts from a shure and a nextlink headset http://www.barjohn.com/Custom_AX2.htm ), because with a boom close to the mouth and another mic close to the ear you can do very good noise cancellation indeed.
Basically, don't trust any bluetooth headset reviews that don't test in a really noisy environment, and there are good reviews out there that have sound files you can play to hear for yourself.
Bottom line: this review's winner is a loser in my car.