Ultrasonic Pest Repellent
Although it's a small device but very useful especially for warehouses, industries and homes. Latest Technology of Ultrasonic Pest repellent. No Chemicals, No smell, Odorless. Children and pets friendly product working with automatically changing voice frequency. Tested at labs. Hassle free and saves thousands of dollars in a lifespan. Just Plug in and enjoy insect free living. Annoys creatures Like Mice, spiders, Lizards, Rodents, Cockroaches and in 5-10 days repels from the area. No dead creatures in the house as they look for other places.
Ultrasonic devices operate through emitting short wavelength, high frequency sound waves that are too high in pitch to be heard by the human ear (generally accepted to be frequencies greater than 20,000 Hz). Humans are usually unable to hear sounds higher than 20 kHz due to physiological limitations of the cochlea, though there is considerable variation between individuals, especially at such high frequencies. Some animals, such as bats, dogs, and rodents, can hear well into the ultrasonic range.