The Thermacell MR300 Mosquito Repellent is a portable, heat-activated spray that provides outdoor protection against mosquitoes. With a 15 ft zone of repellent action, this product is powered by batteries and is EPA registered for use. The green plastic spray is reusable and comes in a pack of 1, making it a convenient and effective option for camping and hiking trips. Made by Thermacell, this mosquito protection spray is a must-have for any outdoor enthusiast looking to deter pesky insects.