They sent me two fake devices. After my fifth email threatening to sue their company they agreed to send me a new* unit. We tested both units and both were found to be defective. The fist unit was in a *factory sealed* package with a "USB" style charger that didn't even fit the phone. These are sealed packages by Motorola there is no way that Motorola would put the wrong charger with the wrong unit. Also the buttons on the earpiece don't push down smoothly like a store bought unit does. We tried these two units with five different phones at home and at our cell phone store. The sound coming through to the person you are calling is almost all static, making the earpiece completely useless. I will be reporting this to my local authorities and also to Motorola. I will then follow up with a law suit against this company for selling a false product under false pretence.