The included bait is initially used to lure cockroaches to the trap where they are zapped and killed instantly. The dead cockroaches then release pheromones which in turn attract even more cockroaches to the trap. Chemicals and poisons are not used in this product at all. It is safe for humans and pets, making it environmentally friendly. This product is designed to be used indoors and for repeatable use. Includes AC adapter, Bait and Cleaning Brush.