GardePro B180C Instruction Manual page 26

If there is only one camera, the interface will look like this:
If there are two or more cameras, the interface will look like this.
You can press Right or Left to shift among the cameras.
You can press Down or Up to shift among the Camera settings
sub-menu.
1) You can press OK to turn on/off the Sound detection. If you
turn on the Sound detection you can set its Sensitivity to High /
Medium / Low.
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