The diaphragm turkey call is the most popular type of turkey call due to its realism and hands-free operation. Knight & Hale's newest diaphragm turkey call, the Smoke'n Fire™ turkey diaphragm, is especially accurate thanks to a wide front and V cutter-style cut. It produces a raspy, realistic sound. This turkey call is also made with custom-blended latex for increased water resistance, which helps it sound truer, longer.