Mojo HW2542 Triple Whammy Waterfowl Duck Decoy - Mallard machine consists of a decoy that causes a realistic feeding mallard drake decoy to dive, bob up and down, twist and wobble by attaching decoy to a float designed as a buoy. Equipped with a motor driven prop that pulls the float partially under water then releases it to bob up and down. The prop action causes it to not only bob up and down but also sideways and twists and the righting aspect of the buoy straightens it out when de-energized. Features Timed Motor; Rechargable 8 Hour Batteries; Remote controlled; Hinged Screen; Decoy butt attached to float; Carry Handles;