Memory Retention Feature; Audio/Dimmer Operation - Uniden LRD6699SWS Operating Manual

Memory Retention Feature

The Memory Retention Feature retains the LRD 6699SWS's operational
settings in memory for at least two days without power. When you turn
on the LRD 6699SWS, it will be in the same mode as when you turned it
off.

Audio/Dimmer Operation

Press the AUDIO button to select one of the following modes:
DIMMER mode – dims your detector's display. A "D" is displayed to
indicate this mode.
AUDIO mode – turns your detector's display off. An "A" is
displayed to indicate this mode.
(The mode indications ( CITY, AUDIO, or MUTE) remain on.)
Note: Do not set the Volume control at minimum while in this
mode because you'll disable both alert types–visual
and audio.
NORMAL mode – is the normal display mode.
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