The only thing that I can add to the hundreds of reviews already posted here is my own experiences (we ordered 2 of these).Positives:- No earbud going into the ear - this is a BIG positive because I can't stand those and, apparently they are not good for you.- Quick charging.- Easy to pair - in my case with a Razr and a Blackberry.- Easy to turn on/off, by simply folding/unfolding the microphone boom.- Pretty good instructions.Negatives:- My wife complains that the sound quality is not always perfect.- Being as small as it is, perhaps some carrying pouch should have been included.- The charging interface is not a mini-USB but some weird, proprietary plug.- If there is a way to attach this to the left ear, I am not aware of it.At this time, my wife decided to keep hers but she will give the second one to her girlfriend as a birthday present :)