Ultrasonic Mosquito Repellent Set of 4, Ultrasonic Electronic Insect Repellent and Anti-Rodent for Rodents Mouse Mosquito Cockroach Spider Fly

General description The Ultrasonic Mosquito Repellent Set of 4 is designed to effectively keep pests away from your home. Utilizing ultrasonic waves, this device stimulates the nervous systems of insects and rodents, preventing them from developing immunity. It is safe for children and pets, making it an ideal choice for family health. Technical specifications Material: High-quality ABS Effective coverage area: Approximately 100 square meters Installation height: 80-120 cm from the ground Installation Simply plug the device into a wall outlet, ensuring it is perpendicular to the ground. The blue light indicates that the device is operational. Usage Effective against a variety of pests including spiders, mice, insects, mosquitoes, bugs, ants, and cockroaches. Visible results can be seen within 2-3 weeks. For optimal performance, avoid placing any coating on the device's surface. Other information Odorless, noiseless, and radiation-free. Recommended to use one device per room or multiple devices in larger areas for enhanced effectiveness.