The Thermacell Rechargeable Mosquito Repeller is a powerful outdoor insect repellent that creates a 20-foot zone of protection against mosquitoes, fleas, and ticks. This heat-activated repellent, powered by a Li-ion battery, offers long-lasting protection for up to 12 hours with a refill. Made of durable plastic and designed for outdoor use, this stylish black device from Thermacell is a reliable and convenient way to keep insects at bay during camping, hiking, and other outdoor activities.