Good Benefit function as following: FOR TRIPS:When you're trip,more convenient to carry-on it, Hanging on the neck,cool and more comfortable,Feel cool anytime, anywhere,suitable for traveling in hot weather, save you from the embarrassment of dripping sweat suddenly in public in many places, it is your good assistant in summer. FOR WORK?When working, you can wear it while working and enjoying the cool wind.itcan cool quickly in 1 seconds,Make your thoughts clear and energetic. FOR COOKING?Wearing it cooking in the kitchen in hot weather,bring you comfortable in summer to drive away troubles in hot weather,The neck fan really helped. The fan air was distinctly cooler than the outdoors, and the fan speeds were strong. FOR FITNESS/HIKING?When you are working out, you can also wear portable neck fan to bring you cool wind. Wingless design(no leaf hanging neck fan), you don't have to worry about hair being caught by fan blades specifications: Product name:Leafless hanging neck fan Digital display: 1-2-3 gear LCD display Product batteries: lithium batteries battery capacity?4000mAh Charging time: 1-4 hours Charging interface: USB Power:5-7power Running time:6-12 hours working temperature:8-40degree How to use: 1.Take out the fan,wear it around your neck with the air outlet facing up 2.Switch adjustment:Under power off stage,long press switch 3 seconds to turn on ,it is memory gear,one press is for wind speed is for wind speed adjustment,followed by recycling,1-2-3 gear can disply.long press switch 3 seconds to power off 3.Charging if the fan stop working at low power,please connect the power with charging cable to charge for fan indicator light flashing when charging ,always on once finished&turn off indicator lightPackage Contents: 1 * Neck Fan 1 * USB cable 1 * User manual