LG L31L User Manual page 13

WARNING
Placing a heavy object on the phone or sitting on it can damage the LCD
and touch screen functions. Do not cover the LCD proximity sensor with
protective film. This could cause the sensor to malfunction.
Volume Keys
On the Home screen: Control
•
ringer volume.
During a call: Control your
•
earpiece volume.
When playing audio/video:
•
Control volume continuously.
NOTE: Please be careful not to block the main microphone by your hand
when you call.
Power/Lock Key
3.5mm Headset Jack
IRRC
Sub Microphone:
Speakerphone
Charger/USB Port
Main Microphone:
Call, Recording
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