Mojo Butt Up Rippler Motion Decoy. These Ripples were developed as a result of a special request by Jase Robertson of Duck Commander a world class duck hunter who understands that realistic ripples on the water accurately simulate live ducks thus greatly increasing the attractiveness of your spread to other ducks. Arguably the most efficient way to add realistic motion to a decoy spread these two decoys were developed by two of the biggest names in waterfowling MOJO and Duck Commander to be simple effective and user friendly. Based on an accurate carving of a feeding mallard. The Butt-Up and the Mallard give a totally different look but with the same and interchangeable vibrating mechanism. Brings not only life but realistic life to an otherwise dead decoy spread. Operates on 4- AA batteries not included. Specifications for Mojo Butt Up Rippler: Manufacturer: Mojo Decoy Position: Feeding Species: Mallard Package Contents: Mojo Butt Up Rippler Mojo HW2459: Butt Up Rippler Motion Decoy