The Thermacell MR300 Portable Mosquito Repeller effectively repels mosquitoes by creating a 15-foot protection zone. The MR300 Repeller can be taken virtually anywhere outdoors to repel pesky mosquitoes stopping them before they can bite or bother you. The MR300 is the newest Thermacell portable mosquito repeller boasting some new and improved features.Features: New features include: Quiet ignition Reengineered grill and switch Improved ergonomics and Accessory mounting system 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 Package contains: 1 Olive MR300 Repeller and 12 hours of refills - 3 repellent mats and 1 fuel cartridge