TECHNOLOGY & DETAILS: Creates a 20-foot zone of mosquito protection around you Works fast, max protection in 15 minutes Ideal for backyard, poolside, patio and beyond. With a rechargeable lithium ion battery, protection works consistently for 5.5/9 hours without weakening over time. Easy to use, people and pet friendly 100% satisfaction guaranteed Proprietary formula precisely targets mosquito sensons, driving them away For outdoor use only Pack includes 1 repeller, 12 hours of repellent refill, USB-C charging cable Allowed to bring on airplanes