The ThermacellA(R) E55 Rechargeable Mosquito Repeller creates a 20-foot "comfort zone" of advanced mosquito protection, anywhere you go, for up to 5.5 hours on a single charge. It's a must-have when you're deep in mosquito country. 12 hours of mosquito repellent included-additional cartridges are widely available-and audio cues and LED lights let you know you're protected and how much battery life remains. Creates a 20-foot zone of protection against mosquitoes Powered by a rechargeable battery with up to 5.5 hours of continuous protection per charge Repel mosquitoes without DEET sprays or lotions Includes (1) repellent cartridge that provides 12 hours of protection Repellent cartridge contains active ingredient 5.5% metofluthrin Additional cartridges sold separately Independently tested and EPA reviewed for safety & effectiveness Includes (1) li-ion rechargeable battery, (1) 12-hr. repellent cartridge, and USB charging cable Order today!