Click it to boot up or shut down
Click it to input device number,
so that you can control it.
Various forward speeds and
normal speed playback.
Multiple slow play speeds or
normal playback.
In playback mode, playback the
In playback mode, playback the
previous video.
In pause mode, click this button
to realize normal playback.
In normal playback click this
button to pause playback.
In real-time monitor mode, click
this button to enter video search
Reverse playback pause mode,
click this button to realize normal
In reverse playback click this
button to pause playback.
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