To make matters worse, this means that the camera defaults to the microphone being disabled, and you need to download their proprietary software to enable it. Which is Windows-only. I've got a mac. So I ended up having to install Windows in a VM just to let me enable the microphone on my webcam. (Fortunately the setting is persistent and you only need the VM once)
I think the auto light settings on the camera need the Windows software too, it's a remarkably bad camera. Avoid!