The Phantom Pro-Series Sound Module has 12 sounds * Elk Sounds Include Bull Battle, Antler Tree Rub, Growl, Herd Bull Bugle, Lost Cow, Young Bull Bugle, Mews, Chirps, Estrus Cow, Hyper Estrus Cow, Calf, Elk Steps * These Interchangeable Faceplates and Sound Modules allow you to really Leverage your Wired or Wire-Less Pro Series Calls from Extreme Dimension