The latest innovation in the fight against mosquitoes is engineered specifically for the avid outdoors person and traveler. Thermacell EX90 is easy to use and provides hours of scent-free, mess-free mosquito defense. Thermacell's largest area repellent zone available, the EX90 provides a 20-foot zone of advanced mosquito protection. Equipped with a spill-proof locking mechanism to aid with portability - lock it up and stash it in your pack with the reassurance that other important items will remain dry. A quick-view window allows easy visibility of how much repellent remains. Durable and compact with an easy-to-grip rubber over-mold, the EX90 features an IP54 rating to protect against dirt and moisture. It is also air travel friendly. Includes a lanyard and carabiner for versatile mosquito protection - hang from a tree, tent, and more. Features a 9-hour battery for long-lasting protection - can charge while operating to extend run time. Audio cues and LEDs let you know you're protected and how much battery life remains. Charge less, get outside more. Keep mosquitoes away with the simple push of a button