Optelec Compact Go Instructions Manual page 8

Sound Firmware Version Time setting
Power Saving Refresh Rate Restore Factory Settings
1.6.1 Sound
The sound screen has four options, which are off, low, medium, high, and medium by default.
1.6.2 Firmware Version
This option shows the software version of this product.
1.6.3 Time setting
It can set operation duration through it.
1.6.4 Power Saving
By default, this product will shut down automatically after 3 minutes of
inactivity.
To enable or disable the power saving, use the icon Z under system setings to
choose between 2 options in the Power Saving setting. Once you turn this
function off, this product will keep on until it runs out of battery.
1.6.5 Refresh Rate
To change the refresh rate, choose the 60Hz/50Hz icon (it will display either
60Hz or 50Hz) and press Mode button to enter settings. Press Zoom in/out
button to choose between the 2 options.
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