I'm using two of these cables to run a headphone jack and mic jack from a gaming PC sitting next to my TV/receiver to the couch, about 12 ft away.
Does a great job bringing a headphone/mic combo from far away to the PC. No noise or hum because these cables are well shielded against EMI/RFI.
As the description says, there are two separate conductors, one for each stereo channel (presumably with a common ground). Each conductor is 22AWG. So it's not a single coax, but a "twin lead" double set of coax cables attached together. Thus, the cables themselves are pretty thick. But they work perfectly for me since they basically run across the floor against a wall, and the mic and headphones I plug into them have their own much lighter cable that plugs into the female end.