Ok, so I tried this on the way home today. It does make a difference; with the defaulted 10/10 volume, the background noise was unbearable, and my wife could barely hear me. I turned it down all the way to 0/10; it was better. I then tried every other increment, and 1/10 was the best. Anything above 1, and the background noise was too much. Now, it was "better" than before (10/10), however, nowhere near how good my Android bluetooth quality was..