Portable ThermaCELL MR300 Olive Green is the updated version of the well-known Portable model. The new features include: Silent ignition Redesigned plate, grille and buttons for better usability Improved ergonomics Innovative wire-free and battery-free insect-repellent plate evaporator system for outdoor use. Effective against mosquitoes (including the Tiger), sand flies and flies. The necessary heat source comes from a small and safe butane gas cartridge which releases the heat necessary to release the active ingredient contained in the special Thermacell refill plates. There are no open flames. The heat is transmitted in a uniform and controlled way through a metal plate. Umbrella protection on an area of about 20 square meters. Candles are not used which, in addition to being dangerous, heat the platelets unevenly, causing an uneven release of substances. The package contains the Olive Green portable Thermacell, 3 platelets, 1 butane for 12 hours of protection. Duration of a platelet: up to 4 hours. Butane cartridge life: approximately 12 hours. Ideal for outdoor use in contexts such as: patios, dehors, balconies, terraces, in restaurants, camping, gardening, drying the laundry and outdoor activities. Activate the appliance a few minutes before staying outdoors as many times as you want or need total protection. Portable: -Small and handy, it can always be carried with you. -The belt sheath is available to be protected and have your hands free. - ON / OFF button