"""The Rat Zapper uses advanced electronic technology to deliver a deadly shock to mice and rats. Just bait the Rat Zapper with ordinary dry pet food, nuts, or dry bait. When the rodent goes for food, it steps on a kill plate. The system senses its presence, then delivers enough electrical energy to quickly kill the rodent. Disposal is clean and easy. Simply add new bait, turn the system on and place back in an active area. Includes bait. Requires 4 """"D"""" Batteries (not included). Batteries la"""