This Small House Repeller is a contemporary, slimline, aesthetically pleasing and effective solution to pest problems in the home or the office. With a repelling range of up to 1,000sq feet, the Indoor Repeller targets rats, mice, spiders, cockroaches, ants and other crawling insects. The repeller emits ultrasonic sound waves which are completely undetectable to the human ear, irritating and confusing the pests, repelling them from their hiding places and discouraging them from entering your home. The unit's speaker is powerful, despite it's slimline design. In line with the contemporary feel, it also displays smart, soft LED lights, which light up when the repeller is workings. Simple to operate (instructions are included), this is a simple, humane, and mess free solution to household pests, safe for both pets and children alike. We recommend that the space around the repeller is unobstructed for best results. Safe for use around: pregnant women, children, birds, fish, lizards, dogs and cats.