The LR1K sonic cannon, which is also referred to as the Geonosian sonic cannon or the Geonosian sonic defense platform, was a type of weapon known as a sonic cannon. The Geonosians utilized this weapon for the Confederacy of Independent Systems during the First Battle of Geonosis and the Second Battle of Geonosis. A strong burst of sonic energy was unleashed by the weapon, proving to be a potent asset for the Confederacy during the Clone Wars, capable of killing the majority of clones.
Star Wars: Episode II Attack of the Clones marked the initial appearance of computer-generated sonic cannons in a film.