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6. Volume reduction
Click the
icon to turn down the volume.
7. Volume plus
Click the
icon to turn up the volume.
8. Brightness reduction
Click the
icon to decrease the screen brightness.
9. Brightness plus
Click on the
icon to increase the screen brightness.
10. Whiteboard
Click on the
icon to enter the educational whiteboard software.
11. Endorsement
Click the
icon to open the annotation for writing.