Rocky Mountain All-star 2.0 Diaphragm Call

The Rocky Mountain All-star 2.0 Diaphragm Call is a versatile hunting call designed by World Champions Rockie and Corey Jacobsen to deliver authentic elk and deer vocalizations in the field. This compact diaphragm call is engineered for hunters who need reliable cow and calf talk combined with powerful bugles—all from a single, lightweight tool. Whether you're a novice caller just beginning your elk hunting journey or an experienced hand refining your technique, this call bridges the gap between simplicity and performance, giving you the acoustic range necessary for multiple game species.

Diaphragm calls operate by vibrating a thin latex reed against the roof of your mouth, producing natural-sounding vocalizations without requiring your hands—a critical advantage when you need to maintain your weapon ready or binoculars in position. The Rocky Mountain All-star 2.0 uses a precision-tuned reed design that generates the frequency range required for convincing cow-elk and calf distress calls, while simultaneously producing the higher-register bugles that bull elk respond to during the rut. The call's compact 3-inch profile and minimal weight (0.02 lbs) make it packable in any hunting pack or shirt pocket, ensuring it's always accessible when opportunity arises. Champion-tested geometry and materials ensure consistent tone production across varying humidity and temperature conditions typical of high-altitude terrain.

This call is ideal for early-season and pre-rut elk hunters, as well as deer hunters targeting responsive does and calves. Its novice-level skill requirement makes it accessible to newcomers while offering seasoned callers the acoustic flexibility they expect from championship-grade equipment. Diaphragm calls excel in situations where hands-free operation and rapid-fire vocalizations give you a genuine tactical edge—especially when glassing steep canyons or positioning for a shot. The Rocky Mountain All-star 2.0 pairs well with open-country hunting where distance and wind-carry demand powerful, authentic sound projection. No setup, batteries, or electronics required; just pack it and deploy it instantly when elk respond to your scouting or calls.