[Gowry]

I've been through quite a few headsets and I love the Plantronics 855.
It fits into the ear canal, is very comfortable, and has an extensible boom. People usually complain that they can't hear me on headsets, but this one has been great.

I've also used:

Jawbone: people could hear me if music blared in the background but not when it was silent. I hated the earpiece. I like canal-headphones like those made by Shure and wish more headsets would adopt the same style of earpiece with replaceable foamies.

Plantronics Voyager 510: Great sound quality but had some problems with static every now and then.

Motoroloa ???: just didn't work well with the ppc6700. No motorola device seemed to. (I'm on the Touch now)

Plantronics 665: had a nice in-car charger but no one could hear me on it.

Plantronics 640: I still have and use this one. Not quite as nice as the 855, but still very good. I wish it had the same earpiece as the 855.

Gowry