Ultrasonic Pest Repeller for Mice, Roaches, Ant & Mosquitoes

No Trap, Non-Toxic and Eco-friendly This insect repellent is 100% safe. Stay away from the harmful chemicals, poisons, and traps typically used in households and by insect control technicians. This cockroach killer creates an environment for pests so they simply leave. Naturally drives pests out without killing them. No need to clean up dead insects and pests
Easy to Use Simply plug this mouse repellent in the outlet , then this rat repellent works when you notice the blue light is on.20-80cm above from the ground is recommended for crawling pest, while higher for flying pest
One Unit for One Room It is effective for an area up to 20-60 square meter. Because the solid and walls will weaken the effect of ultrasonic wave, we suggest install one unit per average-sized room, several units for larger room. For indoor use ONLY