Pros: external noise = no more
Cons: a little bulky
overall i am pretty satisfied with this ear piece. given CA now mandates you have one of these bad boys, it makes the perfect thing to wear in the car. i still can't get myself to wear it anywhere outside of the house or car, and hope i never make that mistake, but if you are looking for a headset that totally eliminate the noice outside, you should check it out.