Panasonic KX-TGM420 Operating Instructions Manual page 41

13 [OFF]
14 [SLOW] (SLOW TALK)
SLOW TALK indicator
15 [BOOST]
BOOST indicator
• Light off: Volume booster is turned off.
Light in red: Volume booster is turned on.
Note that when the BOOST indicator is lit in red,
the volume booster feature is enabled and the
product may emit sounds at very high volume.
16 Charge contacts

Control type
(A) Soft keys
By pressing a soft key, you can select the
feature shown directly above it on the display.
(B) Navigator key
– [], [], [], or []: Scroll through various
lists and items.
– VOL. (Volume: [] or []): Adjust the receiver
or speaker volume while talking.
– []
: View the phonebook entry.
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