I've been wondering the same thing. I'm unhappy with ALL bluetooth headsets. Why does every headset manufacturer think that a headset with the microphone located withing 2 inches of your ear could POSSIBLY give good sound quality?
I've noticed that all the headsets that have a boom extended to your mouth can either (a) reduce the gain levels because the microphone is so close to your mouth -- thereby SIGNIFICANTLY cutting out background noise or (b) create really good noise cancellation technology (e.g. "The Boom").
"The Boom" uses passive sound cancelling that's really simple. But it only works because it HAS a boom. Basically the headset has TWO microphones (not one). One of them is in front of your lips. The second is located away from your lips. The idea is that "ambient" sounds from the street, airport, etc. will come in at about the same volume level on both microphones. So they invert the wires on the second microphone so that they create a wave-form that, when combined with the normal wave of the primary microphone, they cancel themselves out. But... your talking will come in SIGNIFICANTLY louder on the microphone in front of your lips than it will on the 2nd microphone -- that means the 2nd micrphone pickup wont generate enough of a wave to cancel out the sound of your voice on the 2nd microphone. The result is low-tech way to make a headset that works so well that everybody except you might as well be on mute becasue the person on the other end of the phone will hardly be able to hear any background sounds other than the sound of your voice.
I have the Plantronics M2500. It's great for quiet environments, but if I'm on the street, in an airport, etc. the other party gets SOOO much background noise that they can barely hear me. This headset is absolutely awful.

I see Body Glove makes a headset that has an extending boom (
http://www.gowithit.com/bluetooth/default.htm ), but it doesn't look like it extends very far and I cannot find any specs on the headset (battery standby, talk time, etc.). Anybody have one of these and is it any good?
I cannot seem to find bluetooth headset that works well in noisey environments. If you know of one, please let me know!
