Thermacell MR300 Portable Mosquito Repeller - Portable Mosquito Repeller is easy to use and provides hours of scent-free, mess-free mosquito defense up to 15 feet per repeller. With no batteries or cords needed, the portable repeller is ideal for hunters from the tree stand to the duck blind, as well as on-the-go adventures like fishing, camping, hiking and more. Includes one repeller, one 12-hour fuel cartridge, and three 4-hour repellent mats. Portable Adventure MR300 creates a 15-foot zone of protection against mosquitoes. Powered by a safe and compact fuel cartridge. Emits scent-free repellent that drives away mosquitoes. Repel mosquitoes without DEET sprays or lotions on your skin. 12 hours of mosquito repellent and fuel included. Unscented repellent mats last up to 4 hours each and change color when time to replace. No mess and easy to refill. Thermacell's synthetic allethrin formula is inspired by repellent extracts found in plants. Independently tested and EPA reviewed for safety & effectiveness. People and pet friendly. Extend warranty to 2 years with registration (automatic 1 year warranty included). See packaging for details. Includes: One repeller, one 12-hour fuel cartridge, and three 4-hour repellent mats. For Outdoor Use Only