The Thermacell EL55 Rechargeable Mosquito Repeller with Light is a deet-free outdoor insect repellent in a convenient spray form. This heat-activated technology creates a 20-ft zone of protection for up to 9 hours. Powered by a rechargeable lithium-ion battery, this unit includes a 9-hour rechargeable repeller and features a built-in rechargeable battery, making it a practical choice for camping and hiking adventures. The multicolor blend material and repell/deter control method provide a safe and effective way to keep mosquitoes at bay while enjoying the great outdoors.