It's lightweight, portable, simple and affordable. It has highly visible and tantalizing action using realistic prey-type fur that immediately attracts and holds predators' attention. Intermittent, cycle action for added realism. It calls 'em in and diverts their attention away from you. The Mojo Critter is proven to work on all predators and will greatly improve your success. Operates on 4 "AA" batteries (not included).