Turn your current FOXPRO Fusion or CrossFire digital game call into an all-inclusive and portable Predator calling machine. Simply replace the existing battery door with the FOXJACK 4, attach the connector from the decoy to the connector in your Fusion or CrossFire digital game call, and you're ready to go. The FOXJACK 4 comes with a bird topper (which resembles a woodpecker) and a whisper-quiet motor. Use the FOXJACK 4 to add realism to give Predators the visual confirmation that they are looking for. The FOXJACK 4 can be controlled remotely with your FOXPRO Fusion or CrossFire digital game call (game call sold separately). the Auxiliary button on your FOXPRO Fusion or CrossFire remote control starts and stops the action of the FOXJACK 4.