Asus Chromebook C425TA E-Manual page 42

Inside the status area
User account
This shows the currently used Google user account.
Network
Click/Tap this option to view your current network connection,
available network connections, and the network settings.
Night Light
Click/Tap this option to turn the night light on or off.
Volume
Drag the volume slider to the left or to the right to turn the
volume up or down on your Chromebook.
42 Chromebook E-Manual