Bluetooth has been used since 1994 and became widely used in 2004. We just hit 20+ years of usage for all sorts of things. They don’t have an impact to DNA or brain. Long exposure to the sun without sunscreen would be a bigger issue than having a Bluetooth headphone, lol.
Or, I just lied to you and as soon as you put some headphones on your brain is going to change so much you’ll be speaking another language and hallucinating. Who’s to say?
You just unlocked a memory for me, I had these and I loved them. I was like 17 at the time so I don’t remember if they actually sounded good but they were cool and I remember being blown away by the touch controls that I now hate with a passion on any headphone, lol.