The Ortho Home Defense Mosquito Preventer is a pest-controlled insect device manufactured by The Scotts Company. This mosquito killer and preventer unit controls mosquitoes and larvae effectively, making it ideal for outdoor use in regions with high mosquito populations. The product does not require batteries or assembly and is designed for easy manual operation. With its EPA registration number 91720-2-239, this environmentally friendly pest control device provides a silent and efficient solution for eliminating mosquitoes from your surroundings.