The HS850 was good in the old days when bluetooth first came out but now it is just a wast of money to buy this thing. The problem is unless your in a quiet room you cant hear the other person on the phone. Forget trying to use this while driving. The background road noise will never let you have a decent conversation without you continually asking the person on the other end to speak up. Spend the money and get a decent headset or even a corded one. You wont regret it.Logitech Cordless Headset for PC & Mobile Phones