The Victor electronic mouse trap uses innovative technology to deliver a humane, high-voltage shock, eliminating mice in seconds. To use, simply apply bait in the built-in bait cup, place the trap along the wall near signs of rodent activity, and turn it on. Advanced smart circuit technology senses when a mouse enters the tunnel, triggering the system to deliver a shock. Once fully inside the tunnel, beveled columns keep the mouse in place over the plates, ensuring a 100 percent kill rate if used as directed with fully charged batteries. After a catch, an LED light blinks green, so you know when it's time to empty the trap without having to check the chamber. When the batteries are low, the LED light will flash red. For your convenience, the trap's design allows for no-see, no-touch rodent disposal. Plus, the tunnel design and built-in safety switch, which deactivates the trap when opened, helps to protect children and pets.