Earlier quoted context omitted.
I dunno, if you haven't run into audio or video interference on a wired device, you're lucky or have quality cables. I've definitely picked up radio stations on headphones or had nearby electrical currents induce an annoying buzz in a microphone or distort a video signal.
> I've definitely picked up radio stations on headphones Not exactly the same, but makes me reminisce the days of the iPod nano. It offered FM radio using the headphone cables as an antenna. I haven’t seen that supported anywhere since, which is a shame because I’d really like to get local stations on my phone.
I had that come with a cheap motorola phone (3 years ago or so)
https://www.motorola-support.com/uk-en/?page=topic/applicati...
So not ubiquitous but not that rare either.