USB 3.0 Type A Portable Fan. Micro USB Fan is the perfect solution when you are hot and need cool air blowing on your face while on your smartphone. QUALITY MATERIAL - With its body made with hard TPE plastic, the cooling unit has two soft plastic rotating blades that are each 1.5 inches long, providing enough air movement to blow a fresh breeze and cool you down. With no cords or cables to deal with, it gets plugged in and instantly starts spinning. Although the fan is small, compact, and weighs about an ounce, its motor speed can reach 16000 RPM, has a 5v voltage and 80 MA current, and can run continuously for longer time period. Plug and play,No driver installation required. Rotatable fan with safety soft foam fan blades.