Primos Revolver Grunt Call Simple revolving dial design adjusts call for a estrus bleat, doe bleat, doe grunt, young buck or a mature buck grunt. Features: Every deer call all wrapped up in one! Simple revolving dial design adjusts call for a estrus bleat, doe bleat, doe grunt, young buck or a mature buck grunt Infinite adjustment capabilities Soft touch body for quiet carry U. S. Patent No. 9,326,499