Add even more true-to-life movement and water action to your duck hunting spread with the MOJO Outdoors Triple Whammy Duck Decoy Motion System. Designed to attach to the support pole of your Motorized Spinning Wing Duck Decoy (not included) near the water's surface, this device adds multiple types of water motion to your spread! Courtesy of a rotating blade, this device adds motion ripples to the water and throws highly-visible water droplets into the air, just like live ducks do. Colored white on one side and dark on the other, the Triple Whammy's rotating blade's flashing appearance adds another visual attractant to your setup as well. System reverses direction each on/off cycle to change the direction of the ripples in the water for more realism. Featuring a user-friendly grip knob, the system's specially-designed attachment allows you to mount the Triple Whammy on round or square poles. Unit features a convenient removable waterproof battery holder for its 4 AA batteries (not included) and a holder to store, protect, and transport its magnetic-attached blade. 3-way switch lets you set system to Normal, Off, or Aggressive. Runs up to 12 hours on Normal setting or up to 10 hours on Aggressive setting. Motion system for duck decoy spreads Attaches to the support pole of a Motorized Spinning Wing Duck Decoy (not included) Adds multiple types of water motion to your spread Creates motion ripples to the water and throws highly-visible water droplets into the air Rotating blade's flashing appearance also adds a visual attractant Reverses direction each on/off cycle for added realism Specially-designed attachment - mounts on on round or square poles Convenient removable waterproof battery holder for its 4 AA batteries (not included) Also features a holder for its magnetic-attached blade 3-way switch - Normal, Off, or Aggressive