IMHO, bluetooth ear pieces look **** stupid. I refuse to use one. I bought a speaker phone for the car with a blootooth connection. It's crystal clear...awesome device.
It's made by "Blue Ant" and is called the "Supertooth Light". The Link
I absolutely LOVE this thing. I'm a developer, so I am often on construction sites. This thing doubles as a kickass speakerphone for conference calls. I have had several friends/coworkers buy them after seeing mine in action. I HIGHLY recommend it.