If you are a motorcycle buff you will want to keep your eyes open for the Parrot SK4000 wireless headset. It adapts to any helmet and has great communications with an exposed mic.
What makes this wireless headset different is that it is really smart it takes voice commands to dial your cell phone, change the radio station, play a different track on your media player.
A very robust system that even has handlebar controls that work with motorcycle drivers with gloves on.