It is a small and compact device that can be hooked to android V8 OTG Mobile Phone Only. Micro USB Fan is the perfect solution when you are hot and need cool air blowing on your face while on your smartphone. 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. Support only to Micro USB OTG phones.