Humane, High-Voltage Shock - Once inside, the circuit triggers a high-voltage shock, humanely killing the mouse or rat Use Indoors and Outdoors - This rugged, weather-resistant trap is designed to withstand both indoor and outdoor conditions. Catch rodents outside before they come inside Professional-Grade Trap - Designed for trappers of all experience levels Dual-Entry Design - Mice and rats can enter the trap through either side, which encourages rodent interaction to ensure higher kills rates Innovative Safety Features - Kill-Switch technology automatically shuts off the trap when the lid is opened and tunnel baffles prevent people and pets from reaching the electrified plates Requires 4 "AA" lithium batteries (lasts up to 3 years)