Simple and dependable - You&';re gonna love the way this call works. The Sonic Dome Series has been designed so the call is automatically positioned correctly in your mouth. The dome gives you a consistent distance between the reeds and the roof of the dome, for an incredibly consistent sound. The Sonic Dome Series calls use latex reeds. These calls will do it all.From the Beginning of Primos In 1976, Turkey CallsWill Primos&'; love for the high country shows through with the quality of elk calls that Primos continues to produce year after year. Primos elk calls come in many shapes, sizes, and sounds. When calling elk, being versatile is key; we have put years of recording and research into our calls.Primos Hunting: Speak the LanguagePrimos Hunting is the leader in the design and manufacturing of game calls for elk, deer, turkey, predator and waterfowl. Our commitment in game calls - to make great products built by hunters, for hunters - also extends to our blinds, shooting accessories, trail cameras, attractants & supplements, clothes and other hunting accessories. You may also know us through our television show Primos&'; TRUTH About Hunting, DVD&';s and Mastering the Art video series.