This ultrasonic pest repeller emits high-frequency waves targeting bed bugs, dust mites, fleas, and ants through dual ultrasonic and electromagnetic technology. Features 360 coverage up to 70 with automatic frequency conversion to prevent pest adaptation. Energy-efficient design consumes 1-3W power (110-220V compatible) for continuous 24/7 operation. Chemical-free pest elimination solution suitable for bedrooms, hotels, and hospitals. Compact 5.5x3x9.6cm plastic housing ensures safe use around humans and pets. Easy plug-and-play installation requires no maintenance or replacement parts. Effectively disrupts pests' nervous systems while remaining silent to household occupants. Ideal for long-term prevention of allergen-causing mites and blood-feeding insects in mattresses and upholstery.