I had seen several people using this and thought it was a great design. They gave it excellent reviews so I took the plunge.I was under the impression that the ear piece picked up your voice from your ear canal so that your speeach would be crystal clear to the person on the other end. However, this isnt the case. The mic is in the piece that sticks out of your ear. This is only a problem in loud environments where the mic tends to pick up a lot of background noise. I drive a sports car that has a relativly loud cockpit and tend to get complaints from the people I speak to. When I drive the wife's sedan its no problem at all.As for quality, it is very well put together and I haven't had any issues. The brightly colored silicone ear pieces let you select from small, medium and large for both right and left ears. I leave mine in the car a lot and the blue colors started to fade and popped off of the earphone more easily. The rubber ear piece can be easy to loose.Sound quality is very good as long as the rubber piece is correctly seated on the earphone. It also has to be placed in your ear correctly or the sound is a bit muffled.I had tried other over the ear boom mics and those &quot;bug on a wire&quot; style. They all present compromises on quality and clarity. This has been the best trade off I have tried.Overall a high quality hands-free that looks cool too.