Small size, big function Combined with the fan + torch + emergency power bank function, the JISULIFE F8 pocket fan would be a daily essential fan to cool you down in hot weather and is multi-functional to satisfy your various needs. 14-21 hours cooling time Up to 21 hours of cooling time on one full charge. The extra long battery life allows you to enjoy it on the go, on the move, at work and during any other outdoor activities. This mini portable fan is USB rechargeable via a standard USB plug, laptop, power bank or car charger. A palm-sized emergency charger Featuring a unique, pocket-sized design, the F8 portable fan is easy to store in a bag to carry. . And it's a perfect option as an external backup power bank to charge your phone if needed. Also a flashlightDesigned with a flashlight function to boot. You may not look for a torch at first, but you'll find that this is very useful when you go out for a walk at night. to slip into almost any pocket. It is a portable fan when folded 180 and a desk fan when folded 270.