ViewSonic M2 User Manual page 41

Main Menu Sub-menu
Advanced
3D Settings
harman/kardon
Menu Option
3D Sync
3D Sync Invert
Audio Mode
100Hz
500Hz
1500Hz
5000Hz
10000Hz
Audio Volume
Mute
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Auto
Off
Frame Sequential
Frame Packing
Top-Bottom
Side-by-Side
Disable
Invert
Movie
User
(-/+, 0~50)
Off
On