If your concern isn't radiation, then is there a specific bluetooth issue or is it in-ear headphones in general? Certainly anything that can cause a build-up of

If your concern isn't radiation, then is there a specific bluetooth issue or is it in-ear headphones in general? Certainly anything that can cause a build-up of earwax can result in other issues. So if you're wearing them for long stretches daily, there's a potential issue if these devices go deep enough (I don't know if they do).