The Cash Cow series are premium mouth calls designed for serious elk hunters. The Cash Cow series of mouth calls are sure to help get those big bulls coming in and help you Speak the Language.The Primos Cash Cow custom designed mouth calls are extremely sensitive and realistic. The Cash Cow Pocket Change is a medium frame mouth call with trim-able tape. This feature allows those with medium to small palates to get a perfect seal on the call for super accurate calling. This call is excellent for high pitch cow and calf sounds.