Description: Features: brand new and high quality The pest repeller uses advanced microcomputer control technology, emits constant frequency(CF) and variable frequency(for VF) of Ultrasonic wave, Electromagnetic wave, Simulation wave, Intermediate wave, so as to stimulate the auditory and nervous systems of rats, bats, mosquitoes, flies and cockroaches,keeps them away in a few weeks of using. Optical repelling function is especial for the rats. It flashes from high frequency to low frequency, so as to prevent the adaptability of rats. Eco-friendly and energy saving. No harmful poison, dangerous chemical. Electronic pest repellent is safe with human and pets. Displayer will be automatically turned off and go to the energy-saving mode. The user-friendly design will avoid the light from influencing daily work and rest. This pest rejector is effective for an open area up to 160 square feet,the bug repellent is ultra silent without radiation. Wide Applications: The pest repellent can be widely used in home, warehouse, shop, hotel, hospital, office, grain depot, etc. Specification: Rated voltage: 110-240V Rated frequency: 5Hz Rated power: 5W Output audio: 20KHz-155KHz Area: 160 Material: ABS Optional Color: Blue, Green, Gray Optional Plug Type: UK Plug, EU Plug, US Plug Dimensions: 3.9x2x2in(9.9x5.08x5.08cm)(approx) Quantity: 1 pc Note: Transition: 1cm=10mm=0.39inch With retail package. Please allow 1-3mm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package includes: 1 x Pest Repeller(other accessories demo in the picture is not included.)