Among the awsome features of newer GRE radios , I love these two features. If you program the unlimited combinations of these two features, it is no longer necessary to watch the display ! Across the room you can tell which agency you are lisenting to. In combination with the audible alarms and keypad/display backlights, constantly watching the display is a thing of the past ! The HP-1 is great tech, but you still have to watch the touchpad. I quickly sold mine here on RR. To each thier own of course.