The concept of the spinning wing decoy (SWD) was developed in California in the 1990s and started with a single large blade mounted into a U-frame and turned by a DC motor mounted to one of the vertical legs of the U, with the blade attached to the frame by an axle. They were generally referred to as the "Goal Post Decoys," and they created a phenomenon in the duck-hunting world. Since then, the evolution of the SWD has been toward a life-like bird decoy with a pair of smaller wings. Many hunters today, especially guides who hunt every day, have learned the single big blade has advantages over the pair of smaller wings; among them, it provides for much more long-range attraction and gives the ducks a new "look". Single Large Blade in Metal U-Frame Maximum Flash for Maximum Attraction Blade Quick Connect for Maximum User Friendliness Latest Technology Electronics Remote Controlled -Continuous-Off-Intermittent Use MOJO Big Blade With or Without Remote Heavy Duty Wiring Harness Single Male Plug-In - No Small Wires Red Emergency Wire - Connects Motor Directly to Battery 8 Ah Li Ion Battery Runs up to 7 hours Bearing Mounted to Terminal End of Blade Axle Bearing Housed in Hinged Compartment for Easy Blade Removal 2-Piece 48" Stake