Avec même pas de speakers:

One device that the lab is making is an energy weapon that can use lasers to create the Laser-Induced Plasma Effect, which allows it to alter atoms and create words out of thin air. For now, it makes strange human-like sounds, but intelligible words are coming within the next three years. The goal is to have the weapon being able to create particular noises or heat at particular distant points in space. Anyone in between the weapon and the place where it creates this effect would be unaffected. The current range of such a blast is projected at “tens of kilometers”


À lire sur bigthink.com/paul-ratner/the-us-military-has-a-weapon-that-can-create-human-speech-miles-away