DJI RC Pro now support Epson AR Glasses with USB-C port,like bt-40.(Havent tested bt-30c,but I think it should.)
(Smart controller for Mavic 2 doesnt support any USB-C Glasses yet)

Thanks for sharing.

Hello there MrApple. Good day and thank you for reaching out. I hope that our fellow DJI co pilots who owns the DJI RC Pro can give out the best recommendation with regards to this matter. Thank you and have a nice day.