The Thermacell MR300 Portable Mosquito Repeller will not spook game and has no open flame. The included holster attaches to belts, camping gear, hunting equipment, backpacks and more. The holster also allows for convenient storage of Thermacell refills. A must-have for your next hunting trip, camping getaway or for simply enjoying time in the backyard with friends and family. Thermacell repellers offer a 4.5-meter zone of protection against mosquitoes. The effective, trusted, DEET-free repellent dispersed by the MR300 Repeller keeps mosquitoes away, allowing users to enjoy carefree mosquito-free time outdoors. Portable and lightweight, the mosquito repelling system requires no cords or batteries so you can use it anywhere adventure calls. The MR300 is backed by a 100% user satisfaction guarantee. Turn it on… Mosquitoes Gone.