LG TONE Free Owner's Manual page 14

Listen to the Ambient Sound (LAS)
The Listen to the Ambient Sound (LAS) function allows you to listen to
the ambient sound so that you can recognize the surrounding situation
and any potential risks.
Touch and hold the left or right earbud to turn on or off the Listen to
the Ambient Sound (LAS).
In the LG TONE Free app, you can choose Listen to the Ambient Sound
(LAS).
You can configure the Listen to the Ambient Sound mode and
Conversation mode using the LG TONE Free app.
Using the LAS results in reduced usable time compared to when it is off.
The LAS operates while the phone is in the standby mode or music play
mode.
CAUTION: When the LAS mode is enabled, you may hear the ambient
!
sound become loud suddenly.
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