【Powerful performance】: This latest ultrasonic rodent repellent has two chips, which will emit stronger and more concentrated ultrasonic waves, making it harder for pests and rodents to approach than before. Bed bugs, spiders, ants, cockroaches and mice stay away from you Houses! 【Safety and environmental protection】: The insect repellant contains no chemicals, no radiation, no odor, no dead bugs, no batteries and gives you a 100% safety guarantee. Its ultrasound only affects parasites, and the ears cannot detect sounds, so it will not interfere or irritate humans and animals! 【Small and light, wide range of applications】: The new small square design is very cute, cartoon style, only 27g each, ultralight and stress free, widely used in homes, warehouses, offices, hotels, etc! 【Rate of effective cover】: We recommend installing one unit per room for the best and best results. For larger storage areas, we recommend installing 2 or more devices! 【Easy to use】: All you have to do is plug