Pretty sure the independent article is getting this all wrong… i’m willing to bet a whole lot that the actual thing in the kid’s ear was not implanted at all but was a small magnet resting in the ear canal and the “bluetooth sim” stuff was the EM coil around his neck connected to a bluetooth receiver or some sort. This is classically the kind of stuff reporters will accidentally get wrong because they are willfully lazy, or they willfully get wrong because they know it will attract eyeballs and who gives a shit about journalistic integrity or reporting the truth.
The dude on Shark Tank clearly had nothing but an idea, and had not actually attempted to create anything… if he had, the whole thing would pretty clearly not work… transdermal charging with AC… also why call it “AC charging” … why would you use AC and why would you call it “AC charging”… and how would the microphone work all swamped by tissue… and and and… just sooo many obvious problems. That’s not to say it would be impossible to explore, but yeah i think it’s pretty clear this guy never actually did any of that technical development before going on TV.