Small Size, Big Function: Combined with fan, flashlight and emergency power bank function, Jisulife F8 pocket fan is an essential everyday fan to cool you down on hot days and multi-functional to meet your multiple needs. 14-21 Hours Cooling TimeUp to 21 hours cooling time on a full charge. Super long battery life lets you enjoy it while traveling, commuting, working and any other outdoor activity. This portable mini fan is USB rechargeable via a standard USB outlet, laptop, power bank or car charger. A backup chargerWith a unique pocket design, the F8 portable fan is easy to put in a bag. And it's a perfect option as an external backup power bank to charge your phone when needed. Also a flashlightWith a bonus flashlight function. You may not be looking for a flashlight in the first place, but you will find it very useful when walking around at night. 3-stage convertible fan Can be completely folded for hide the blades, makes it small and compact enough to fit in almost any pocket. It is a portable fan when folded 180 and a table fan when folded 270.