Ultrasonic pest repeller, safe for humans and pets, for mosquitoes, mice, fleas, rodents, cockroaches, ants, spiders 2 pieces Information about this product Ultrasonic Technology: This ultrasonic pest repeller is the latest version. It can repel mosquitoes, mice, spiders, cockroaches, wasps, ants, crickets, bedbugs, bats, squirrels, bees, and other small pests. Easy to use. Simply plug the electronic insect repellent into an electrical outlet and ensure it is installed vertically, away from the floor. Make sure there are no barriers in front of the ultrasonic pest control plugs, such as curtains or closet panels. Safe for Children and Pets. Ultrasound is inaudible to humans and pets. An environmentally friendly alternative to hazardous chemicals, poisons, traps, and sprays, without unpleasant odors or cadavers. Wide Effective Coverage: The ultrasonic mosquito repellent plug is suitable for areas of 800-1200 square meters. It is widely used in homes, warehouses, offices, kitchens, living rooms, garages, etc. Because ultrasound does not penetrate walls and solid objects, it is recommended to place one in each room. For large warehouse spaces, we recommend installing two or more devices. Satisfactory Quality Assurance Pest management is an ongoing process and typically takes 3 to 4 weeks before results are visible.