I am going to get the mirror and read this:

"City Mute - Your detector's city mute feature reduces its range
against genuine speed traps. Engage the GPSmirror's City Mute
instead by pressing button 4 and voice alerts announce the band
but alert tones are muted."

I am curious in this mode it will always annouce bands, can you make it completely mute and no voice say under 25mph?