Motorola has always made phone call quality a priority, and they try a new trick on the Droid X: three microphones, two used for noise cancellation. The trick works: I didn't get any background noise on the other end of calls made with the X, even when I made the calls standing next to a roaring city bus. RF reception was also spectacular. Thanks to the huge antennas, the Droid X was able to eke out a call where the Incredible failed.