PROGRACE Mini Micro USB Fan by Smartphone-fan Portable USB 8 Pin Fan for Android Portable Mobile Dock Fan Lightning, Samsung 7, 6, 5, 4, 3, Note, LG G3 G4 (Black) STAY COOL - Micro USB Fan is the perfect solution when you are hot and need cool air blowing on your face while on your smartphone. With the dimensions of approximately 3.5-by-1.6-by-1.6 inches, it is a small and compact device that can be hooked to any Micro Usb product running on Android or Lightning Cable port with its 8 Pin connector.