In a newly published paper, researchers in Japan claim to have developed a device capable of disrupting speech “without without any physical discomfort.” They call it the SpeechJammer, naturally, and it works by playing back the words a person just spoke, kind of like a super-fast “mic check,” which the brain is apparently incapable of processing.

The ‘gun’ is comprised of a “direction-sensitive microphone and a direction-sensitive speaker.” Although this could come in very handy during the high political season and would presumably help the gaffe-generating Republican candidates, in all likelihoods, it sounds like the scientists who developed this technology plan on using it against the people, not for them:

“We discuss practical application scenarios of the system, such as facilitating and controlling discussions.”