LG -H830 User Manual page 53

Live Zoom
Live Zoom allows you to zoom in or out on a portion of a video that is being played to
make the desired section appear larger or smaller.
When viewing a video, use your index finger and thumb in a pinching or spreading
motion to zoom in or out.
NOTE Do not press too hard; the touch screen is sensitive enough to pick up
a light, but firm touch.
Dual Play
Dual Play connects two devices using a USB cable or a wireless connection, allowing
you to view content on a different screen. The connectable device can be a TV or a
monitor. Viewable content can come from the Gallery and Video apps, however not all
videos are supported by Dual Play.
NOTE Tap
is playing a video and your phone's video applications is displaying an empty
screen), then Dual Play will start. Dual Play operates at 1280X720 or higher
display resolution.
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once when two displays are a different status (i.e. the monitor
Camera and Video