Dr. Death was designed for producing loud, raspy, and crisp rabbit in distress sounds. It features an internal tone board with a thin mylar reed. It has been hailed as a "go to" call for many seasoned coyote and predator hunters. Dr Death has an extra large exhaust port that allows for better vocal manipulation with your hands. If you are looking for a professional grade hand call that works on calling coyotes, Dr. Death is your hand call!