The Cow Girl call is a “bite and blow” style call. A cow elk’s call is characterized by a note, sliding from a high note to a low note. The Cow Girl is one of the easiest ways to achieve the “sliding note” consistently. Squeeze the end of the Cow Girl for realistic inflections and volume control.Made of soft flexible rubber for volume controlSubtle sounds for close-in callingU.S. Patent No. 5,910,039