These are transmitting at a max of 200millwatts in the 2.4ghz spectrum (bluetooth). 2.4ghz is the heating frequency of water and 200mW can't heat water for shit. It takes 13 megajoules of energy (~3.25 kilowatts) focused for an hour to heat one liter of water. 200 millwatts continuous transmission (which they dont do) for 8 hours wouldn't heat up your ear canal by a quarter of a degree. It also wouldn't magically bypass the water in your cells to twist your DNA and give you cancer.

How many millions of ear buds are worn every single day and for the last at least two decades? They wouldn't have needed a Vax to kill you, they would have taken care of half the US population with no additional effort.

These cause no damage to a mammalian body.