A directed-energy weapon (DEW) is a ranged weapon that damages its target with highly focused energy without a solid projectile, including lasers, microwaves, particle beams, and sound beams.
Caption: Police car equipped with an LRAD-500X sonic weapon (Warsaw, Poland, 2011)
When I say “Energy Weapon”, I’m referring to this:
From Wikipedia:
Pro tip, the lrad can be defeated by carrying a parabolic shield and pointing it back at the operators.
Tech Ingredients has a great video about that on youtube