Headphone conversion to wireless help

Zeos usually recommend the mpow dongle. This one is a little old, but there are newer versions with aptx HD and Bluetooth 5.0. Never used it, so YMMV.
https://www.amazon.com/Mpow-Bluetooth-Transmitter-Headphones-Hands-free/dp/B01KXIKCSI

If you want to go LDAC, then you can get a similar 3.5mm male to male adapter and a BTR3K, but that’s more expensive.