I bought this for my hubby for Christmas. I did a lot of research because I wanted something he could use while he is driving his semi-truck. The biggest issue is all of the noises going on in his cab at the same time creates a lot of background noise; You've got--the smart system that tells you if you change lanes, etc., the turn signals, the engine noise (the worst), and the CB on in the background, along with any music or if the window is down-the road noise. It was almost annoying to talk to him, and I was concerned that a blue tooth just would not work for him. AMAZING, AMAZING, AMAZING is all I can say! I actually enjoy talking to him now. Not, that you can not hear these things in the background, but, I hear them way less, and I am shocked at how well I can hear him, and he can hear me, too. What a great product! We would give it 10 Stars if we could.