Hi Paul,
It's an older Logitech 5.1 sound system. My PC is new and powerful enough, but a fairly lean box with coinfiugureable audio plugs. The mic jack can be configured for the rear speakers, and I haven't found an affordable USB pencil mic. Since I mostly listen to music on Pandora, it isn't using the rear channel, so I'm just going to unpplug them and use it for the mic. I still have my eye out for an inexpensive webcam, but as yet am running dark.
Rusty