I had show way back in season one of techisland about bluetooth headsets. Ive been using one for as long as I can remember and im surprised that not many do.

The reason why I chose it over the wired is obvious. I dont put it on my ear all the time, only when there is a call.

Cell Phone Radiation Mice and Cancer EMF Radiation News

Cell phone radiation information and protection

Just a call for safety: Protect yourself and your family, use a handsfree headset or a bluetooth headphone.

Bluetooth Radiation article, proving its safe:
Radiation of Bluetooth technology - what are the dangers?