You can adjust it directly from our player. Please see below for the direction:
To adjust brightness, tap and hold on the left side of your device's screen, scroll up to increase and down to decrease brightness.
Tap and hold on the right side of your device's screen, scroll up to increase and down to decrease volume.
On your mobile/ tablet App, it is automatically adjusted to be played on full screen. However, some video sources may have a different aspect ratio which causes blank spaces around the title. You may like to double-click on the App to enlarge the original video source.