The Circle Three Calls in One is a tradition in Weatherproof Predator Calls, Circe is “The Call of the Wild”. All Circe calls are constructed of durable polycarbonate, then hand tuned to perfection. MVP-4 is three calls in one including; one jackrabbit, one cottontail and one coaxer call. Quickly twist the top to change from voice to voice. Great for long-range, mid-range, and close-in calling.