

What’s the wire on the headset for?
So a bit of background. My brother gifted me the headset a few years ago, and I’ve used it regularly, but he gave it to me having used it himself, so I never got an owner’s manual or anything like that. So I actually never knew what the actual hardware on this thing is like.
I could look it up but you guys here would explain it much quicker than digging through the online instructions or whatever.
Also what’s the port on the back end for? I assume it’s some kind of battery pack or something but never hurts to ask.