This is the best headset I have ever tested. If there is a better headset on the market, I haven't heard about it. It is expensive, and it is exclusively at AT&T stores (for now) but it is worth the money and the trip to the store. The design is comfortable and fashionable. It is very powerful, easy to use and the build quality is second to none.

There are a couple of things to be aware of with this headset: - First, the Voice Activity Sensor has to sit against your cheek for it to work right. You just have to get the right fit with the right combination of earbud and earloop. Secondly, if you are "upgrading" from the old Jawbone, beware that the battery life is not quite the same. I could go weeks without charging my old Jawbone. It makes sense, since this is 50% of the size, that the battery life would be less. It is advertised as 4 hours of talk time and 8 days of standby time. In real world tests, I got a little less than four hours of talk time - but it was pretty close.

If you want "The Best" Bluetooth headset - for now, that crown rests atop the Aliph Jawbone2.

Final Grade: A+

Pros: small, amazing noise cancellation, comfortable, crystal clear

Cons: Expensive

The new Jawbone is available today for $129.99 at AT&T retail stores nationwide and online at www.jawbone.com and www.wireless.att.com. Available initially in matte black, it will be coming soon in silver and rose gold.