STAY AWAY, ITS FAKE. I don't believe it. This guy is selling a fake stuff and people are buying it like a candy, hundreds of them. I got a cheap plastic thing stuffed in plastic bag. No paper of any kind associated with it. No Plantronics written anywhere (even misspelled). Unbelievable to me that Amazon allows it to continue like this. Well looks like there are plenty of stupid people (or friends of seller) giving 5 star reviews.