General description Ultrasonic Mosquito Repellent Plugs are designed to repel a variety of pests including mosquitoes, rodents, ants, spiders, and more. Utilizing ultrasonic technology, these plugs emit high-frequency sound waves that are uncomfortable for pests but harmless to humans and pets. They are energy-saving, non-toxic, and environmentally friendly, making them a safe choice for indoor use. Technical specifications Frequency: 20-65 kHz Power: ≤ 3W Power Source: AC 90V - 240V / 50 - 60Hz Effective Coverage Area: 800-1200 square feet (approximately 80 to 120 m²) Material: ABS Plastic Installation Plug the device into a wall outlet, ensuring it stands vertically. Recommended installation height: 10 to 40 inches above the floor. For optimal effectiveness, install one unit in each room. Keep the device away from carpets, curtains, and other obstructions as ultrasound cannot penetrate these materials. Usage Simply plug in the device and let it operate; it will begin to repel pests