LG V490 Owner's Manual

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Airplane mode – Allows you to turn off all wireless connections such as Wi-Fi
and Bluetooth.
Mobile networks – Allows you to set whether to enable or disable data
access on your tablet.
VPN – Allows you to set up and manage Virtual Private Networks(VPNs).

Sound

Sound profile – Allows you to set the sound profile to Sound, Vibrate only or

Do not disturb.
Volume – Manage the volume for Notification sound, Touch feedback & 

system, and Music, video, games & other media.
Vibration strength – Allows you to set the vibrate strength for calls,
notifications, and touch feedback.
Notification sound – Allows you to set your default notification ringtone.
Do not disturb – Allows you to set a schedule when to prevent interruptions
from notifications. You can set to allow certain features to interrupt when
Priority only is set.
Lock screen – Allows you to choose if you want to show or hide notifications
on the lock screen.
Apps – Allows you to prevent apps from displaying notifications or set apps
to show notifications with priority when Do not disturb is set to Priority only.
Touch sound – Allows you to set your tablet to play a sound when you touch
buttons, icons and other onscreen items that react to your touch.
Screen lock sound – Allows you to set your tablet to play a sound when
locking and unlocking the screen.