The best blue tooth I have found is the Blue Parrot. It eliminates background noise for the people you are talking to. It has volume control and has a redial button. The only con I can find is as my son puts it "You look like you work in Tim Hortons". $150 at any place they sell that stuff. I actually saw one for $110 at the Flying J in Edmonton. Trust me......it looks a little goofy but works VERY well!