There are two buttons on the right temple.
The brightness button
Press the button to choose from the five available brightness levels.
Press and hold the brightness button for 2s to switch to 3D(SBS) mode.
Continue to press and hold the brightness button for 8s to switch to 3D(3840 x 1080) mode.
The Volume button
Press the Volume “+” or Volume “-” button to increase or reduce the volume.
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