Since first purchasing my Bluetooth capable phone in February 2007, I have tried no less than 6 Bluetooth headsets. All of them that I tried before this one would cut out and and sounded terrible. Many of them had such sensitive microphones that people could hear everything that was going on around me when I talked to them.This unit has a good mic and people no longer complain that the noises around me are too loud for them to take. They can hear me well, but not every door slam or conversation around me. I read several reviews that said this is a very good unit. The reviews were not wrong.The unit is nearly the smallest I have found. It looks good on my ear. I did have to use the (included) ear hanger piece to keep it on my ear. It is supposedly designed so that one can just put the gummy earpiece in one's ear and go. But my ear is big and none of the gummy earpieces were capable of staying in my ear. Besides, when I spend this kind of money on something, I don't want any chance it is going to come off my ear and be lost or broken. So, if you can't get the earpieces to fit, just use the hanger.Unit is easy to use. Works with voice dialing and will dial the last number dialed with just a press of the button twice. Answer and hang up with the button. Volume is on the unit and works well.It comes with a normal plug-in charger AND a pocket charger that will charge it off of a AA battery. That is handy to just put in your bag or briefcase and charge in an emergency away from home and the home charger.I would buy this unit again.