You can mirror tablet screen and sound onto LG Miracast dongle or TV wirelessly.
From the Home screen, tap the Apps > Settings > More...
Tap the switch to enable Miracast.
Turn on the Miracast feature on your TV or connect to the LG Miracast dongle.
Note: To start the Miracast feature quickly, tap the Miracast icon in the Notification Panel. While mirroring, Mobile Hotspot cannot be used simultaneously.