Higdon Outdoors Riven Rosie Diaphragm Elk Call 4CEA1CEB HG. It is an extremely versatile call capable of producing a wide range of Cow Elk sounds. Features of Higdon Outdoors Riven Rosie Diaphragm Elk Call: Easiest and purest sounding cow elk call available Extremely versatile call Wide range of Cow Elk sounds Package Contents: Higdon Outdoors Riven Rosie Diaphragm Elk Call This mouth call was designed to be the easiest and purest sounding cow elk call available. It is an extremely versatile call capable of producing a wide range of Cow Elk sounds. HG65215