You should do more research about wireless headphones in particular, if you are worried about the health. There's scientists signing petitions to have the technology regulated. So far everybody makes what they want and that's kind of frightening.
This is just one of many articles about it:
https://www.healthline.com/health-n...eve-the-current-EMF-guidelines-are-inadequate
Mine are BT. If there were issues with Bluetooth, I think we might have heard something due to it's wide usage.