Was an especially commonly discussed topic in 2020 during the George Floyd related protests. Some notable video resources on how to defend against these devices and what one can expect: [0] and [1]. To save you time, if i remember correctly, the most effective is one of those plastic riot shields held in reverse to direct the sound back at the sender (notably pretty difficult when you don't want to just hit other protesters, or don't know where the sound is coming from and/or are getting hit by reflections).
Was an especially commonly discussed topic in 2020 during the George Floyd related protests. Some notable video resources on how to defend against these devices and what one can expect: [0] and [1]. To save you time, if i remember correctly, the most effective is one of those plastic riot shields held in reverse to direct the sound back at the sender (notably pretty difficult when you don't want to just hit other protesters, or don't know where the sound is coming from and/or are getting hit by reflections).
[0] https://www.youtube.com/watch?v=CXKTBQBugIA
[1] https://www.youtube.com/watch?v=3sqIvak-4Ek