It is made of quality materials that are weather resistant and durable Uses sonic and vibrational technology The repelling frequency of ultrasonic waves constantly changes and alternates, preventing parasites to develop immunity Non-toxic, chemical free, safe for humans and pets Perfect for home, office, restaurant, hotel, etc. Specification: Material: ABS + Electronic Components Rated Voltage: 90-250V/50-60Hz Rated Power: 3-9W Electromagnetic Frequency Range: 0.8-8Hz Plug Type: EU Plug Voltage ;: 110-240V Material: Acrylic fiber Included: 1 x Rodenticide