The Riven Tremor Elk Diaphragm is a precision mouth call engineered for high-tension, aggressive elk vocalizations. Featuring a technical black and orange design, it utilizes a specific latex thickness to provide the necessary backpressure for dominant bull sounds. This call excels at producing deep, vibrating growls and the high-octave screams required for long-distance bugling. Designed for hands-free operation, it allows Rocky Mountain and Roosevelt Elk hunters to maintain a ready position with a bow or rifle while challenging a bull to provoke a territorial response. Safety Note Realistic elk calls can attract other hunters or dangerous predators like bears and cougars; always maintain 360-degree situational awareness and inspect the latex reed for tears to prevent choking hazards.