A powerful Sound cannon "LRAD" was used against peaceful citizens during a moment of silence at the largest protest in Serbian history. The sound was so loud and terrifying that made everyone panic in an instant and search for cover. (Multiple Angles)

A powerful Sound cannon "LRAD" was used against peaceful citizens during a moment of silence at the largest protest in Serbian history. The sound was so loud and terrifying that made everyone panic in an instant and search for cover. (Multiple Angles)