This BlueAnt Supertooth hands-free phone speaker is AWESOME. After reading many reviews about this unit I decided to purchase it. That was the perfect decision. The set-up took about 1 minute, instructions were simple and easy to follow. The unit fits snugly to my visor and is easy to remove for charging. I get about 2 weeks worth of use on one charge, that is awesome. The phone/speaker clarity is outstanding, I can hear clearly all my calls and the folks on the other end of the call are amazed it is a wireless speaker. I have recommended this to a fellow business owner and he has purchased this unit for 8 of his sales reps.  This is THE unit to purchase. Don't waste your money on any other unit. And my wife also uses this unit, as I bought her one. Only word of caution is , you have to remember to close/shut off the unit when you leave your call. Even that is no big deal, as the worst thing that can happen is you will only get about 1 weeks worth of usage before needing to charge. The included car charger makes this a snap. I would rate this unit a 10 out of 10.