Listen LR-500 User Manual page 31

Quick Reference
LR-400 Inside Access Door
Use UP and DOWN buttons
to select a channel.
Battery Select
Switch
Battery Select Switch - place in NiMH position ONLY if you
are using Nickel Metal Hydride batteries, otherwise, leave it
in the Alkaline position.
SQ Switch: shipped in the ON position, use a screwdriver or
pen to slide to the OFF position if needed. You should turn
SQ off if any of your receivers do not have SQ.
SEEK button
allows the user to
change channels
or to lock on a
channel.
Adjustable Squelch:
The default factory preset for
squelch is 03.(See page 37
for Squelch programming
information)
SQ Switch
29