||I had the Voyager 510 - the blue one from many years ago. Outstanding. Then the same one updated (gray one) that improved on the blue one. Outstanding +. Was just about the pull the trigger on the Voyager Pro, but saw this one, and so I tried it.
And returned it.
Fit was surprisingly good. Pairing easy. All was great, except--to my astonishment--the audio quality. I got complaints of breaking up. A lot. I made test calls to voice mail...and what was clear was very clear, but it was choppy and broken. Clear, but not even.
So I got the Voyager Pro. Ahhh. Outstanding ++.