Latest Ultrasonic Technology: The Nething Ultrasonic Mice and Insect Repeller is the NICO Dual Chip Ultrasonic Repeller effective against both mice and cockroaches. In fact, with three different frequencies, it manages to repel rodents and insects. Use it everywhere: this professional ultrasonic repellent is indicated for use in work environments, such as hotels , bars, restaurants, offices and warehouses, as it is non-toxic and avoids the use of pesticides against mice, cockroaches and mosquitoes Superior coverage performance: the new repellent to Ultrasonic Nething covers an area up to 150 sqm which turns it into an innovative meter in the market. SAFE FOR CHILDREN AND PETS: The ultrasonic repeller is the M all M safe for keep mice and insects away from the house. Ultrasonic technology is not only harmful to humans or pets, but you won’t even feel the sound of ultrasound