Protect your people with Cutter Eclipse Zone Mosquito Repellent. The device creates a 10' invisible shield against mosquitoes in as fast as 15 minutes. It's easy to use, protects up to 5.5 hours per charge, odorless, non-staining, no-mess, weather-resistant, and flameless. Perfect for patios, decks and outdoor gathering. Each cartridge lasts approximately 40 total hours.