Duel Double Back Grunt Deer Call - Dual Chamber TechnologyEnhance your hunting experience with the Duel Double Back Grunt Deer Call, featuring innovative dual chamber technology that allows for versatile calling options. Exhale through one end for louder, more penetrating calls that can attract deer from a distance, while inhaling through the other end produces softer sounds for close encounters. This dual functionality sets the Duel Double Back apart from traditional calls, making it an essential tool for