The Airvana Bladeless Rechargeable Indoor/Outdoor Fan will keep you cool and comfortable wherever you are indoors or out. Beat the heat with this portable cooling option with it’s on the go design. Powered by an AC Adapter and built in lithium battery, you'll have the cool air you need with a continuous run time of up to 19 hours. Recharging is a breeze too; it can be recharged in 2 hours. A powerful current of air will make those hot days delightful whether you have an outlet nearby or not.