Pros: Jawbone features work well.
Cons: Some incompatibility exists with Motorola KRZR.

The Jawbone and Motorola KRZR are incompatible. The problems are intermittent. While using the jawbone there are times when voice is canceled so the person on the other end cannot hear at all. When bluetooth is disabled on the phone, the problem still exists. The phone must be restarted. This problem started shortly after using the Jawbone. After not using the Jawbone for a week, the phone worked flawlessly. Then we decided to begin using the Jawbone to test our theory and sure enough, we began having problems with the phone again. This is NOT related to the little white button not being on the Jaw. It's a KRZR/Jawbone issue.

When both do work, the Jawbone works as advertised.