PLANET NVR-3250 - Manual (Page 25)

4.6 Live Video Control Buttons
Each live video window comes with control buttons with functions described below:
Take a snapshot of a live video.
Turn on/off audio of a live video.
Start/stop recording of a live video (manual recording)
Audio post function. ( Available if the camera support this function)
Full screen view of a live video
Display video in its original ratio
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