Review on Koonie Portable Neck Fan - 10000mAh, 6 Speeds, USB Rechargeable, Hands-Free Personal Cooling Device, Incredible 48-hour Battery Life, 360° Neck Rotation, Battery-Operated Desk Fan - Ideal for Travel, Home, and Office Use by Paul Stevens

I bought this fan hoping that with some grueling summer temperatures and the speed settings and the ability to run the fan Moving to each side would help was a definite plus, the fact that the fan falls easily around the neck was a major downside. When you wear it, you really have to stay upright or the fan will slip around your neck and awkwardly tilt to one side or fall. This is of course very annoying as it requires a lot of fan adjustment. The battery lasts a long time and the multi-speed settings work great and let out a lot of air. I found the ability to move each side fan to be an added bonus as it allows for better airflow control. Overall, the fan was okay in terms of its quality and ability to provide cooling. The biggest downside, and what might put you off wearing it, is the possibility of the fan detaching if you lean forward or don't stay upright all the time. Overall this is a good product with good features and settings. I just wish they could find a way to make the battery more balanced and allow you to move around more with the fan on.