The Goodbye Fly electric fly repeller is a sustainably produced and animal-friendly way of repelling flies and other flying insects. This unit is battery-operated and can be used both indoors and out. This product is particularly useful outdoors keeping insects away from areas where food is being served. The Goodbye Fly runs silently and is safe for children. To ensure safe use, the soft and flexible wings will stop moving when touched. This product requires 2x AA batteries, and has a simple on/off button for ease of use. Animal-friendly, sustainable and effective. Batteries are not included with this product.