The 'discombobulator': Did US use 'secret weapon' in Maduro abduction?

Earlier:

https://news.ycombinator.com/item?id=46754411

https://news.ycombinator.com/item?id=46754101

Related:

Pentagon buys device via undercover operation suspected link to Havana Syndrome

https://news.ycombinator.com/item?id=46608913

> “Suddenly, I felt like my head was exploding from the inside,” the security guard wrote. “We all started bleeding from the nose. Some were vomiting blood. We fell to the ground, unable to move.”

Eerily reminiscent of https://en.wikipedia.org/wiki/Havana_syndrome

Perhaps that was an early, low power botched test of what later went production in the Caracas abduction op.

I wonder if cellphone footage near the attack site can be analyzed for signs of ultrasounds, or such frequencies are outside the detection range of consumer-grade hardware?