🛡️ Shield Yourself from Mosquitoes in Style! EPA reviewed formula, safe for people and pets. Create a 20-foot sanctuary in just 15 minutes! 3-year warranty for peace of mind. Enjoy 5.5 hours of uninterrupted protection. Take your protection anywhere, even on planes! Scent-Free 5.5H Battery 20FT Protection The Thermacell Mosquito Repellent E-Series is a rechargeable device that creates a 20-foot zone of mosquito protection without the use of DEET or zappers. It features a 5.5-hour battery life, is portable for outdoor use, and is backed by a satisfaction guarantee.