Thermacell MR-GJ Portable Mosquito Repeller, Brown (Discontinued by Manufacturer) 15-foot by 15-foot "Zone of Protection" against bugs or 225 square feet Cordless, pocket-sized, portable and lightweight appliance Silent and virtually odor-free operation 15-foot by 15-foot "Zone of Protection" against bugs or 225 square feet Effectively repels mosquitos, black flies and other flying, biting insects Cordless, pocket-sized, portable and lightweight appliance Silent and virtually odor-free operation All ThermaCELL products come with a one year warranty No greasy, sticky, or oily sprays or lotions Odor free repellent mat contains the active ingredient allethrin