I purchased this because my state recently instituted a hands free cell phone law.I'm hearing impaired so I can't wear those "in the ear" bluetooth devices. When I saw this, I figured I'd give it a shot. I usually don't get calls in my car, but figured it would be nice to have just in case.I read the reviews on here before I bought it and most people liked it and the price was right. It was also recommended somewhere else.I finally got a chance to use it this morning- I bought it in November and never tested it out - and it's awesome!The person's voice comes through crystal clear and they understood me too, no problem. It was much better than talking on the phone.The only con was that the volume could be a little louder. I don't think I'd use it when I'm flying down the highway because the road noise gets too loud in my car. But in regular street traffic, I had no problem hearing the person on the other end.All in all, I am extremely happy with this!!