USB Fan Mini Personal Desk Fan with Two Speed USB Powered, Small and Quiet, 6" (Black) This USB Fan is perfect for office, home, dorm, study, library, games room The desk fan is powered by a usb cable. Can use to adaper, usb charger, power strip, power bank, desktop, laptop The mini usb fan can be free to adjust two wind mode: strong or weak You can adjust the angle whichever way you want by 360 degrees without dead ends 6 inch frame designed for personal space