Keep your home free from pests with the Ultimax Pest Repeller. This plug-in device uses electricity to emit ultrasonic waves that repel pests, making it a safe and easy way to keep your home and garden pest-free. The four-pack of white repellers come with a convenient night light feature with on & off button, making it perfect for indoor and outdoor use. Its easy-to-use features make it an ideal solution to the annoying pest problems.