Features: Small In Size, Big On Function Combined with Fan + Flashlight + Backup Power Bank function. 14-21 Hours Cooling TimeUp to 21 hours cooling time in one full charge. This mini handheld fan is USB rechargeable through regular usb socket, laptop, power bank or car charger. A Palm-sized Backup ChargerFeatured with unique and pocket size design, F8 portable fan is easy to jam into a bag to tote around. And it is a perfect option as an external backup power bank to get your phone charged if necessary. Also A FlashlightDesigned with a flashlight function as a bonus. You may not look for a flashlight firstly but you will find that this is quite helpful when go out for a walk at night. 3-Stage Transformable FanAble to be completely folded to hide the blades, makes it small and compact enough to slip into nearly any pockets. It's a handheld fan when 180folded and a desktop fan when 270folded. Specifications: Product Weight: 129g Voltage Working Range: 5(V) Interface Type: USB-C Flashlight brightness50-60lm Size: 4 * 3.70* 12 CM Package Includes: Hands Fan. USB C USB Charging Cable. User Manual.