Device distracts enemy with voices
Engineers at the U.S. Naval Surface Warfare, Crane Division — an Indiana-based Navy R&D facility — have developed a non-lethal weapon that disorients a target with their own voice.
The acoustic hailing and disruption (AHAD) device records a speaker and immediately plays the target’s voice recording back to them in just milliseconds, thereby disrupting the speaker’s concentration and discouraging them from speaking further.
https://insights.globalspec.com/article/17356/device-distracts-enemy-with-voices
https://archive.ph/54frr