Interesting inducing audio on the wire of a connected pair of headphones. (lousy shielding, coax wouldn&#x27;t work but nobody seems to have coax headphone cables at the low end :-)<p>I&#x27;ve always wondered what would happen if broadcast &quot;Ok Google, call 555-1212, ok&quot; over a loudspeaker in a crowded shopping mall. How many people&#x27;s phones would simply obey?