Ultra Power electronic mouse killer effectively and humanely catches and kills mice in indoor areas. Features ergonomic electrical plates which sense when a mouse enters the trap, delivering a high-voltage charge that kills in seconds once the mouse is enclosed within the unit. Semi-transparent lid allows user to check the catch, and can be opened for easy, hygienic disposal, with no need to touch the captured mouse. Safe to use in areas around children and pets. Kills 100+ mice per set of batteries (sold separately). For use Against Mice Plastic Construction Quick, Effective & Humane LED Flashes to Indicate Catch Built-In Safety Features Requires 4 x AA Batteries For use Against Mice Plastic Construction Quick, Effective & Humane LED Flashes to Indicate Catch Built-In Safety Features Requires 4 x AA Batteries