Simply connect the mini cell phone fan to one of the USB ports in your smartphone. The USB mini fan is of detachable design, and it is lightweigt and pocket-size, easy carrying and using, especially while traveling anywhere at any time. This portable, eye-catching item is an ideal product for company picnics, tech conferences, fairs, and much more. Available in a variety of color options, make sure to add an imprint of your logo or company name to this must-have accessory!