Quickly:Pros - Compact, long battery life, good looking design with pretty, flashy blue light.Cons - Does not hug the ear welll and may very well fall whenever you move your head any faster than a casual scan to the sides (such as, say, looking the other way to check for oncoming traffic). Does not fit very well in the ear and thus, even at max volume, one has trouble listening to the other person if they do anything other than talk loudly and clearly into the phone. Although it seems to do a good job ignoring ambient noise, it does the same thing with your voice. One must speak at a very loud volume for the people on the other end of the line to hear you clearly, thus making it useless anywhere other than your own home, car, or desserted ally.