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Currently selected device: This field displays currently selected VC, CAM, or VB device controlled
by PTZApp. If you have more than one AVer VC, CAM, or VB devices connected to this PC/Mac
PTZApp is running, you can click on the drop down list to select other AVer VC, CAM, or VB device.
Function icon: Click it to switch to the function’s page.
PTZ: To control the camera direction, zoom in and out, and to enable/disable the backlight
compensation during your video call.