Thermacell E55 Rechargeable Mosquito RepellerE55 provides a 20 foot zone of advanced mosquito protection. Features a 5. 5 hour battery can charge while operating to extend run time. 12 hours of mosquito repellent included. Audio cues and LEDs let you know youre protected and how much battery life remains. Keep mosquitoes away with the simple push of a button. E55 creates a 20 foot zone of protection against mosquitoes 80% more area than our original line. Easy to use, one button keeps mosquitoes