Serbian security forces used a military-grade sonic weapon, known as an LRAD cannon, against protesters in Belgrade, causing sharp ear pain, disorientation, and panic. The device emits a targeted beam of sound at volumes up to 160 dB, which can lead to eardrum ruptures and irreversible hearing damage. The use of such a weapon has raised concerns about escalation protocols and proportionality under international law. The incident has sparked outrage and debate about the use of force against civilians.