I'm still not convinced that Bluetooth earbuds are safe, and yes, I'm aware they don't produce ionizing radiation. No one here is concerned about having them in your ear canal for hours every day for years is essentially no worse than wearing a hat that keeps your head equally warm? What is the most convincing, clear evidence of a lack of long term health issues?
The same convincing, clear evidence we have of a lack of long term health issues from eating a gluten free diet. There will never be any that will satisfy you, as one can’t prove a negative.