Advanced Ultrasonic Pest Repellent - BOGOUnwanted pests will leave themselves It emits Ultrasonic waves at a specific frequency which irritates Pest & Rodents only by feeling them uncomfortable by destroying their sense of smell, interfering with their auditory nervous system, even destroying their central nervous system, to repel pest without killing them. Due to this Pests become disturbed and run out of house Highlights: Direct plug in Glowing indicators red & green Hygeinic and non