Description * Ultrasonic Technology: The Ultrasonic Vermin Repeller Use The Dual Ultrasonic And Electromagnetic Chips Work Simultaneously to Disorientate The Hearing And Nervous System of Pests to Quickly And Powerfully Drive Them Away. It Can Drive Away Most Types of Flying And Crawling Pests Such As Mosquitoes, Spiders, Bed Bugs, Cockroaches, Mice, Fleas, Ants, Fruit Flies, Etc. . * In And Play: The In Insect Repellent Is Very Easy to Use, Just Into Power Socket And Start Working. Mouse Repeller Can Help You to Get Rid of Pests. Spider Repellent Shall Be Avoided from Curtain Fridge, And Any Other Obstacle That Deterring Or Attaching Frequency. . * Safe And Environmentally Friendly: Electronic Insect Repellent Makes Pest Cant Develop Immunity And Adaptability. force Insect to Run Away from Your Home. Giving off No Noise And Radiation, Free from Dangerous Chemicals Or Smells. No Harm to Health of Babies, Pregnant And Pets. . * Wide Coverage Area: Ultrasonic Insect Repellent Is Suitable for The Area of 80 ~ 120 Square Meters. ItS Widely Used In Homes, Warehouses, offices, Gardens, Hotels, Etc. Since Ultrasound Cannot Penetrate Walls And Solid Objects, It Is Recommended to Put One In One Room. for Areas Where Severe Pests Are Severe, We Suggest Install 2 Or More Devices. . * Note: ItS Normal That The Mouse And Vermin Will Increase At The Beginning of The Using Days. Because They Will Get Away from Their Living Place After The Attack of The Ultrasonic. Ultrasonic Pest Repeller Will Take 3-4 Weeks to Inform Us of The Results. .