Asus MX239HR - Manual (Page 14)

2-3 Chapter 2: Setup
2.4. Adjusting.the.monitor
• For optimal viewing, we recommend that you look at the full face of the
monitor, then adjust the monitor to the angle that is most comfortable
for you.
• Hold the stand to prevent the monitor from falling while changing its
angle.
• You can adjust the monitor’s angle from -5˚ to 20˚.
-5 ~ 20