Reach out and grab that buck with the loudest, most realistic calling sequences ever created. The Hyper Growl's patent-pending design is more representative of a deer's true anatomy than any other call, and correct anatomy produces correct sound. The Hyper Growl's Hyper Ventilator tube creates extremely more realistic grunts, growls, and snort-wheezes by simulating a deer's nasal cavity. Specially designed reed system relieves air pressure and can't be locked up by excessive blowing. Rubber sound cone can be manipulated by hand to change the back pressure and alter the call's sound to create unbelievably realistic inflections and tones. Includes a detailed instructional DVD with bonus hunting footage.