The Thermacell MR150 Portable Mosquito Repeller The butane fuel cartridge activates the repellent mat that effectively fends off mosquitoes by creating a 15-foot by 15-foot protection zone. The MR150 Repeller can be taken virtually anywhere outdoors to repel pesky mosquitoes, stopping them before they can bite or bother you. Ideal for repelling mosquitoes from the backyard to the great outdoors Portable and lightweight No spray and no mess. Scent-free and DEET-free. No open flame, no smoky candles Cordless & Portable The MR150 Portable Repeller is conveniently cordless, lightweight and is designed for use anywhere. All-Around Use The MR150 Portable Repeller has great all-around use and is ideal for use while camping, hunting, fishing, gardening, and around the backyard. 5 Million+ Units Sold The MR150 Portable Repeller is your keystone product with over 5 Million units sold. Package contains: 1 MR150 Black Repeller and 12 hours of refills - 3 repellent mats and 1 fuel cartridge