Haweel USB Phone Fan, 3.5 inch Fashion Two Ports Portable USB/Micro USB Phone Mini Fan with Two Leaves for Samsung Galaxy S6 / S5, Other Mobile Phone with OTG Function(Magenta) It can be used as USB fan and can be switched into an andriod fan, a scalable mobile USB interface power supply interface TPE environmental protection material Can watch TV with side blowing fan Can use mobile phone or power bank for power supply Pls note: If your phone don't support OTG function, then the phone fan don't work for the micro devices.