Review on Stay Cool Anywhere with the Portable Neck Fan: Hands-Free Bladeless Personal Fan for Women and Men, 3 Speeds, Rechargeable, USB Wearable Cooling Fan - Perfect for Office and Travel! by Wendy Benson

The design originally drew me to try this and it's probably the best feature yet. Very graceful and unobtrusive. There are other portable fans that are two small 4-blade fans worn around the neck. This is a much more discreet option! It can get unbearably hot in Southern California when there's no wind, so having a little personal flow is a real treat. It looks like you can use it while charging indoors, but I mostly used it outdoors while hiking. Since I've been using it outdoors, the noise didn't bother me that much, but I imagine using it as a desk in the office will make it sound really loud simply because it's so close to your ears. The flexible neck piece at the back makes it really adjustable, allowing you to position the fans themselves a little further from your ear if you'd like. It takes quite a long time to charge depending on the settings you use. I wouldn't recommend it for camping or anything without constant access to a power source as it needs to be charged quite often. My best estimate is 3-4 hours of continuous use on a single charge. Really cool (pun intended) gadget that makes summer more bearable!