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【Multiple Ultrasonic Pest Repeller】This indoor pest repeller emits fixed-frequency ultrasonic waves, variable-frequency ultrasonic waves (25 kHz–65 kHz), pressure waves, and electromagnetic waves. It creates a disruptive environment that keeps mice, rats, squirrels, bats, cockroaches, and spiders at bay. 【Range】Each ultrasonic pest repeller covers an area of up to 370 square meters in an open space, suitable for protecting individual rooms, garages, attics, or basements. We recommend using one device per enclosed space, as ultrasonic waves diminish upon contact with walls. 【Household-Friendly and Easy to Use】Simply plug this ultrasonic pest repeller into a power outlet to use it. It is a non-toxic and chemical-free method, safe for households with pets and people. The device operates quietly and without causing a nuisance. 【Repelling Modes】Switch between ultrasonic, pressure wave, and electromagnetic modes. The variable ultrasonic modes prevent pests from adapting to a single repellent method, ensuring long-term performance as a mouse, rodent, and pest repeller. 【Protection for your home】This device is suitable for various rooms and can also repel pests in spaces such as attics. No batteries, no installation, no maintenance required – it can be used all year round as an ultrasonic pest repeller against rodents, mice, and other pests.