1) Brightness: adjust the brightness by controlling the knob on the right leg of the glasses or within the app. Please refer to below pic.
2) Volume: adjust the volume by controlling the knob on the left leg of the glasses or within the app, please refer to below pic.
3) 2D/3D mode: switch the 2D/3D mode by pressing and holding the knob on the right leg of the glasses for 2 seconds.
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