I bought four, tried two out, and neither work with my VX8300 (bluetooth enabled)although they are supposed to. In fact, on a normal day I can pick up 4 other wireless headsets from the train passengers around me but no matter how hard I try to smash this crappy thing into the side of the phone, my phone can't pick it up.The manual says hold down the button and a solid blue light will come on, notifying you of 'discovery mode' Well then. All of mine seem to blink like idiots and do none of the above. Whats the chances of 2 not working?I better send these back to Buy.com before I make more dents on their cheap Chinese plastic surfaces (from smacking them against the table in anger).