ASDOMO Electric Pest Repellent Mouse Repeller for Insects and Rodents Ultrasonic Pest Control Equipment US Plug White Size :10 x 6 x 5cm Weight: 85g Riddex Plus turns your home's wiring into a pest repellent force-field. Simply plus Riddex into any socket and it'll send out electrical pulses that'll rid your home of almost any pest. Perfect for: Rats Mice Cockroaches Insects Includes a built-in night light and features patented digital pulse technology. Instructions: To open the package, as long as the drive rats into a power outlet, green lights, red lights start flashing, indicating that the device has started working properly