Specifications: Frequency ranges: 22-65KHZ. Power source: AC 90V-240V 50-60Hz. Average Power Consumption: 6-8W. Effective Range: 120-150sq.meters. Installation Height: 20in-40in higher than ground. Plug Type: US/EU/UK/AU Plug. Item Weight: 45g/Pc. Item Dimension: 9x6x2.5cm/3.54x2.36x0.98in. Features: 1. Variable-frequency drive ultrasound can stimulate the interference of rats, make them unpleasant and uncomfortable, forcing them to automatically migrate, so as to achieve the purpose of removing the mouse.you can get rid of many pest, such as mouse, mosquito, cockroach, flea, flies, cricket, ants, bugs, termites, etc. 2. Non-toxic and Eco-friendly: organic, chemical-free, no smell. 3. It has good repeller effect with high quality smart chip, and low power consumption. 4. Easy to install, just plug our electronic mice repellent into the socket and it will work. 5. ABS flame retardant material, safe and high temperature resistant. 6. Widely used in family, warehouse, shops, hotels, hospitals, offices, gardens, hotels, packinghouse, farms, etc. Package Included: 2 x Pest Repeller. 1 x User Manual