Dual FunctionSwitch between two ultrasonic modes to solve the problem of pests adapting to a single mode over time and reappearing, ensuring long-term repellent effect. Tap once to enter the silent mode suitable for common pests. Tap again for the enhanced mode, designed for heavier pest infestations. Environmentally friendly ultrasonic and chemical-freeThe sonic repeller uses high-frequency sound waves to repel insects such as ants, cockroaches, spiders, rodents, etc., without using any harmful chemicals, which is safe for family and pets. Energy-saving & cost-effectiveLow power consumption, 24/7 operation, energy saving and electricity saving. Perfect for home, office, kitchen and storage area. Easy-to-use plug-in design: Just plug the device into any standard outlet and start working immediately. Small and low-profile, it can be seamlessly integrated into any room decoration. 360 all-round protection: Using Advanced ultrasonic technology, the coverage area reaches 1600 square meters, effectively repelling pests in all directions. ft.