There are many names for this kind of energy weapon: sound cannon, sonic cannon and LRAD (Long Range Acoustic Device). See the evidence Serbia scattered the crowd with one.
Shownotes:
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Makia Freeman is the editor of alternative media / independent news site The Freedom Articles. He is author of the books Break Your Chains and , the book series Controversial Truths Revealed (Cancer: The Lies, the Truth and the Solutions and 40 Incredible Real Life Alien Abductee and Contactee Experiences) and lead researcher at ToolsForFreedom.com. Makia is on Rumble, BitChute and Odysee.