Audio; File Management - Dahua NVR21-4KS3 Series User Manual

Step 2 In the POS Search box, enter the information such as transaction number on your receipt,
amount, or product name.
In the Start Time box and End Time box, enter the time period that you want to search
Step 3
the POS transaction information.
Step 4 Click Search.
The searched transaction results display in the table.

5.18 Audio

The audio function is to manage audio files and set schedule play function. It is to realize audio
broadcast activation function.
This function is available on select models.

5.18.1 File Management

You can add audio files, listen to audio files, rename and delete audio files, and configure the audio
volume.
Procedure
Step 1 Select Main Menu > AUDIO > File Management.
Figure 5-305 POS search
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User's Manual