AKASO BRAVE 4 PRO Manuel D'utilisation page 31

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(9) Sounds:
Shutter: Off/On (Default setting: On)
Beep: Off/On (Default setting: On)
Boot: Off/On (Default setting: On)
You can turn the camera's shutter, beep, and boot sounds on or off.
Volume: You can press the OK button or tap "Volume" to adjust the camera's
volume.
(10) Driving Mode
Off/On (Default setting: Off)
In this mode, the camera will automatically record video and save the video file
when you connect it to the cigarette lighter, and start your car engine.
(11) Upside Down
Off/On (Default setting: Off)
This setting determines the orientation of the image in videos or photos,
preventing the camera from recording videos with upside-down images.
Note: The user interface will be upside-down when this feature is enabled.
(12) Screen Saver
Unlimited / 30Sec/ 1Min / 2Min (Default setting: 1Min)
The display will be turned off automatically after a period of inactivity to save
battery life. To turn on the display again, press any buttons on the camera.
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