The Rocky Mountain Elk Slayer Diaphragm Elk Call is an all-around performer that savvy elk hunters will keep in their arsenal. The stretched latex on this diaphragm call creates a nasal-sounding estrus whine to push those rut-crazed bulls over the edge, plus it's easy to create mews and chirps that mimic everyday herd sounds. The Elk Slayer doesn't stop there, however, as it easily hits the high-pitch squeal of satellite bulls, inviting dominant bulls to come investigate. The easy octave changes even make this elk call ideal for screaming location bugles.