Lots of pro audio stuff used during live performances for in-ear monitors and guitars and the like, yes. I've never looked into it, but I'd be surprised if no

Lots of pro audio stuff used during live performances for in-ear monitors and guitars and the like, yes. I've never looked into it, but I'd be surprised if no one has made a USB-C interface that has a transceiver for them. I think this isn't popular because no one wants to wear a beltpack for their headphones at home.