LG VS990 User Manual page 154

Settings
152
Screen color adjustment Tap its switch to toggle it On or Off. On
allows you to adjust the screen's hue and contrast. Tap Screen color
adjustment to adjust it.
Power Key ends call Enable this option to enable the Power/Lock
Button to end a call.
Hearing Sets options for people with impaired hearing.
Captions Tap its switch to toggle it On or Off. On allows your phone
to display caption text. Tap Captions to access and adjust its settings.
Flash alerts Enable this option to enable the camera's flash to blink to
notify you of incoming calls and notifications.
Turn off all sounds Enable this option to silence all phone sounds and
lower the volume from the earpiece.
Audio type Allows you to set the audio type.
Sound balance Move the slider on the bar to set the sound balance
between the left and right channel.
Dexterity and interaction Sets options for people with impaired motor
skills.
DEXTERITY
Touch feedback time Allows you to set the touch and hold delay time.
Touch assistant Tap its switch to toggle it On or Off. On displays a
Touch assistant icon
instead of the phone's hardware keys.
Screen timeout Allows you to set the amount of time before the
backlight turns off automatically.
INTERACTION
Touch control areas Tap its switch to toggle it On or Off. On allows
you to restrict access to a select portion of the screen.
which allows you to use its touch icons