This neck fan is completely bladeless, yet still able to cool you down with its five speeds and 360-degree air movement. It can run for up to 16 hours per charge and is so lightweight that you’ll forget you’re wearing it. “We've used them at 4th of July parades, baseball games, at the office, on airplanes, by the pool, amusement parks, and getting makeup done for a wedding. They aren't too bulky and look like headphones so most people don't even realize it's a fan,” wrote one shopper.