Oh wow that’s worrying if they’re getting hard to find.

They connect to the controller. You can get a little mixamp for Xbox controllers that lets you control volume, mix and a mute button. For PS it just plugs into the bottom of the controller with a standard aux cable. Not sure if there is something similar to the mixamp for PS5, don’t use a headset often on mine.

I’ve had the same pair of a40s for probably eight years now and they’re still perfect. Never had issues.

They’re wired, I’ve always preferred not having to deal with batteries so perfect for me, but that may be a deal breaker for others. They’re $150 I think.