More Smarter and Durable Protection: 2022 newest ultrasonic pest repeller use intelligent frequency conversion technology and the heat dissipation system can continuously release different frequencies ultrasonic waves 24 hours a day. Ensure that pests do not develop immunity and adaptability, effectively repelling fleas, rodents, roaches, mice, insects, mosquitoes, ants, rats, bed bugs, and more. Safe & friendly: Advanced ultrasonic technology, This device providing eco friendly, non-toxic and tasteless, without any chemicals, 100% safe and sound-free for child, pets and pregnant.Can safely use at home and effectively drive pests away. [Easy To Operate & Full Coverage] Simply plug the pest repeller in a wall socket 10-31 inches away from the floor and keep it vertical to the ground. It works when the blue LED night light on. No more annoying insects in your house. For the best result, equipped each room with one pest repellent. For indoor use ONLY! LIGHTWEIGHT DESIGN: The ultrasonic