Sonic Grenade
this explosive device emitted a loud, disorienting blast when it exploded. Developed more than 4,000 years before the Galactic Civil War, sonic grenades were designed to operate on two levels. First, the sound of the explosion itself was deafening, and often ruptured the eardrums of any being in the blast radius. Second, the frequency of the sonic blast it emitted was barely perceptible to most humanoid races, causing severe disorientation. Millennia later, the Geonosians developed a modern version of the sonic grenade thayt destroyed a target's equilibrium.