Rocky Mountain Stealth Dirty Dog Predator Call - Featuring a wide reed, plastic barrel and the tone cap with automatic Lip Positioner. Placing your fingers over the holes while blowing will create a deeper sound with less volume. Remove your fingers from the holes to create a louder, higher pitched sound. Makes locater, challenge or invitation howl along with lost mate sounds. Includes the new V.E.T.T. system to create more volume, stabilizes higher notes, get raspier barks and takes less air to operate. Predator Call Makes Locator, Challenge, Invitation Howl, Or Lost Mate Sounds Requires Less Air To Operate