Using Knight and Hale’s proprietary Hyper-Ventilator™ inhale/exhale technology, the EZ Grunter Xtreme realistically reproduces all of the most common deer vocalizationsand goes a step further. The unique inhale/exhale design makes it easy for even beginners to replicate the sounds of rut-crazed bucks on the chase. Versatile enough for a variety of hunting situations, the EZ Grunter Xtreme is the next-generation real deal you’ll never want to be without.