Here is an audio example of the [Jawbone](http://www.jawbone.com/) bluetooth headset being used in conjunction with my Mac Book Pro while iTunes blasted 90db of music 6 feet away through my stereo.
[Listen](http://www.geeksrus.com/files/jawbone.aif)
It seems as though the noise cancellation needs a few seconds to settle, so its best to not start talking right away. Let the headset settle and then start talking.
Apparently my MacBook Pro **sucks for bluetooth audio.** Before you use this demonstration as an example of Jawbone’s audio quality for a phone, [please see this post](http://www.geeksrus.com/2007/07/02/jawbone-test-using-jottcom/)