This mini USB fan is operated by a rechargeable battery, which can support the mini fan continuously work for 8h and up, included USB charging cable is compatible with any USB port. It features 3 wind modes, you can adjust appropriate fan speed by pressing the power button repeatedly. It is also a great flashlight to help you out from dark. With its small size, lightweight and a lanyard, it is perfect for both indoor and outdoor activities, office, subway, traveling, camping, hiking.  Available in several colors and can be customized with an imprint of your company logo.