The Thermacell Adventure MR300 portable mosquito repellent ensures hours of scent-free, mess-free mosquito protection up to 4.5 meters (15 ft.) per repeller. Perfect for hunters, campers, anglers, and outdoor enthusiasts, this heat-activated device requires no batteries or cords, making it ideal for on-the-go adventures. It creates a zone of protection against mosquitoes without the need for chemical sprays or lotions on your skin. With a 12-hour fuel cartridge and three 4-hour repellent mats included, you can enjoy long-lasting defense against mosquitoes without any mess. Safe for people and pets, this repellent is independently evaluated for safety and effectiveness. The package includes one repeller, one multipurpose clamp, one belt clip, one 12-hour fuel cartridge, and three 4-hour repellent mats.