The Victor Electronic Mouse Trap uses advanced smart circuit technology to sense when a mouse enters the trap. Once inside, the mouse is held in place by the trap’s patented tunnel design and beveled columns. This eliminates any chance of bait theft and enables a 100% kill rate. When the mouse steps onto the metal plates, it completes the circuit and the trap delivers a humane, high-voltage shock. Each time the trap catches a mouse, the indicator light on top flashes green for up to seven days. 100% kill rate, high voltage shock kills mice in seconds. Kills one mouse per setting.