The Thermacell Backpacker Mosquito Repeller effectively repels mosquitoes by creating a 15-foot zone of protection. It runs on a stove fuel canister (not included) and can provide up to 360 hours of protection. This lightweight and minimalist device is ideal for camping, fishing, gardening, hunting, or any outdoor activity. It is scent-free and DEET-free, and operates reliably up to an elevation of 7,000 feet. The package includes the repeller, 16 hours of repellent mats, and a travel bag. It requires a pressurized self-sealing (iso)butane and propane fuel mix canister (EN417 specification) and will not function with 100% propane. Dimensions: 9.7cm (H) x 5cm (W) x 6.7cm (L). Weight: 114g/4.0 oz.