https://www.popularmechanics.com/mil...ina-guangzhou/
They are going to start calling it BrainMelter soon.
Personally, I think its a simple condenser reflector meant to introduce feedback to anyone using an amplified listening device, and not so much an Atreides sonic gun. Which is a heavy warning to all the spies out there.
spoiler alert for anyone who has not seen Dune "original"
Operation Green Needle?