Ultrasonic repeller with intelligent double-chip design destroys the olfactory and central nervous systems of pests and rodents. This kind of ultrasound can make rats, spiders, flies, fleas, ants and others very uncomfortable types of rodents and insects, driving them out of our homes and habitats. Chemical-free, non-toxic, odorless, quiet and radiation-free. Ultrasound and electromagnetic waves emitted have no effect on pregnant women, children and pets, and humans and pets can’t hear ultrasound. It drives away pests and rats without killing them, leaving behind dead insects or pesky rodents. EASY TO USE: Plug the device into a power outlet 10-40cm above the floor. The ultrasounds are not audible. Install insect repellent in every room. Note that ultrasound cannot pass through walls. Although our repellents work well, if you have a large infestation we recommend placing our repellents in each room. Wide Effective Coverage: The ultrasonic insect repellent can effectively cover an area
