The Cass Creek Ergo Electronic Crow Call is a lightweight and compact call that gives you five realistic crow sounds in the palm of your hand. Its overlap/interrupt technology allows you to instantly change calls without having to wait for the calls to finish. Authentic animal recordings combined with digital sound quality makes it a "take anywhere" call. The 5 calls included are: MacDaddy, Crow Distress, Crow/Owl Fight, Crow Frenzy, Hawk Attack. The Erog Electronic Crow call operates on 3 AAA batteries (not included) and additionally, comes with a convenient belt clip.