The 2 Pack Ultrasonic Mouse and Rat Repellent is a highly effective solution for keeping your home free from pests. With a coverage area of 60-80 square meters, this device can effectively repel mice, mosquitoes, cockroaches, and rats.Unlike other similar products on the market, this repellent offers multi-functionality. It combines extremely low frequency induction field, ultrasonic waves, and infrared rays to create a comprehensive electronic insect repellent. This means that it provides a more powerful and versatile solution to your pest problems.One of the key features of this repellent is its frequency conversion technology. The three types of radio waves it generates constantly change intermittently, preventing pests from developing adaptability and immunity to a fixed frequency. This ensures that the repellent remains highly effective over time, delivering better results than other similar products.Rest assured that this repellent is safe to use around humans and pets. The ultrasonic pressure it generates is beyond the hearing range of human ears, so it won't cause any harm or discomfort. Additionally, it does not interfere with household appliances, making it a convenient and hassle-free solution for your home.Key Features:Coverage area of 60-80 square metersMulti-functionality with low frequency induction field, ultrasonic waves, and infrared raysFrequency conversion technology for better effectivenessSafe to use around humans and pets