With the reliability of its FreezeFree design, the Duel Open-Reed Calf Call works when you need it, no matter the weather. Easy-to-use elk call boasts patented Dual Chamber Technology, which projects sound through two chambers, emulating the oral and nasal cavities of real animals. It results in a tonally robust, resonating call that thoroughly convinces game. Versatile, open-reed design produces virtually any call at any volume. Made in USA.