The ultrasonic will make pest feel uncomfortable and run away. This product is using ultrasonic to make pest anxious and upset. So you can get rid of the annoying pest. Non-toxic, safe and effective, smell-less and flavorless. it won't cause any harm to your families health. Worth buying! ✔ The ultrasonic pest repeller is adopted the quality ABS plastic material for the shell. Good touch feel, sturdy and durable. ✔ The pest repeller product is adopted the advancing ultrasonic technology. Non-toxic, safe and effective! It won't cause any harm to your families health. ✔ Smell-less and flavorless. It repels pest, does not kill pest. Low electric power consumption. Environment-friendly. ✔ Effective Coverage Area: 80~120 square meters. The best coverage area is less than 60 square meters. Smaller the area is, greater the effect is. ✔ The pest repeller is widely used in home, warehouse, shop, hotel, hospital, office, garden, grain depot and so on.  Specifications: Shell Material: ABS Main Color: White Power: 5W Frequency: 50-60Hz Plug: EU Version Effective Coverage Area: 80~120 square meters