🐜 Principle of Repelling Insects: Utilizing low-frequency ultrasonic waves, this pest repeller stimulates the brain and auditory nervous system of mice and pests, effectively expelling various types of pests. 🤫 Quiet and Effective: The low-frequency ultrasonic operation is quiet, odorless, and ensures a peaceful sleep environment for your family. Suitable for homes, warehouses, offices, hotels, supermarkets, hospitals, restaurants, and garages. 🌿 Less Power Consumption: High efficiency with low power consumption, eliminating the need for batteries. A power-saving solution that effectively repels pests without any odor. 🌐 Wide Effective Coverage Area: Covering an effective area of up to 1600 SQ, place a single mouse repeller in each room for optimal results. For larger infestations, use 6-12 units to ensure comprehensive pest repelling, as ultrasonic waves may not penetrate walls or solid objects. 🔄 Easy to Use: Simply plug the electronic repellent into a power outlet. The repellent activates when the blue light turns on, effectively repelling a variety of pests including rodents, hamsters, mice, fleas, ants, mosquitoes, flies, spiders, cockroaches, bugs, and insects.