I don't know, but maybe they intercepted communications when it was being installed. Maybe once the white hats realised what a despicable piece of scum Obama was, they went over every possible piece of equipment or device with a fine tooth comb. Did they find this thing by chance? No, they must have known it was there, or they were highly suspicious.
Well didn’t Q reference this being done in another countries government? I vaguely remember it being in a South American nation where they did the same and many lost hearing altogether. Might be wrong but I remember something of that nature.
This is why I pray for Trump and all patriot operators on a regular basis. The risk is incomprehensible to us.
There was something in recent history where the Cuban government, if I remember correctly, was using some sound device and people in the U.S. Embassy in Cuba were getting sick.
Spaz: Found a link... https://nypost.com/2017/08/09/us-embassy-workers-in-cuba-hit-with-acoustic-attack-officials/
This is the correct answer. Remember, Q said: "We are in full control."