Higdon's Swimmer decoys create the most realistic motion and ripple in your spread possible. Simply turn on the unit and drop it in the water! The cord and waterproof battery box act as a ballast, eliminating the need for extra weight. Swimmer decoys are fully self-contained, foam-filled, and measure 17" from beak to tail. Each unit has a uniquely designed swivel connector that attaches to the included rechargeable 12V mini power pack, so the cord does not get twisted up while it's running. Built-in timer swims the decoy for 5 seconds and then sits idle for 8 seconds on a continuous cycle. Includes 1 Higdon Foam-Filled Magnum decoy, mini power pack, battery box with timer, 10' power-cord, water-pressure control nozzle, and 12V charger. Battery runtime: 7-10 hours.