Designed by world-champion caller Rockie Jacobsen tells you everything you need to know about Rocky Mountain Calls Turkey Diaphragm Calls. With placement farther forward in your mouth behind your upper front teeth, the calls use Tone-Slotted Technology to give you easier control of the latex. Unique low-profile slotted chambered tone top has you creating crisp yelps, clucks, cutts and cackles with ease. Available: Lil Yelper (single latex), Raspy Cutter (notched double latex), Gobbler Getter (triple latex, reversed V-notch), Lil Jake (double latex with narrow frame for smaller palates). Cancer and Reproductive Harm- www.P65Warnings.ca.gov. Type: Game Calls.