Create customized outdoor protection with the Thermacell LIV Smart Mosquito Repellent System. Ditch the batteries and sprays on your skin, and switch to this highly effective and fast-acting solution against mosquitoes. It repels touch mosquitoes, including ones transmitting Encephalitis, Chikungunya, West Nile Virus, and the Zika Virus. Moreover, it includes 1 smart hub, 3 repellers, and more to cover enough for the deck, patio, and firepit area. Each repeller provides a 20-ft protection zone to adapt to your garden size. The Thermacell LIV Smart Mosquito Repellent System features a 5.5% metofluthrin formula that provides consistent and powerful mosquito repellency. Finally, control this system via the LIV+ app, and you can even set timers, on/off schedules, and check repellent cartridge levels.