Learn how to make a mini electric fan for android mobile that support OTG cable. It's very simple mini propeller fan using brush-less motor. br Homemade make a mini Micro USB Fan for mobile at home very simple! br In this video, i will show you how to make a very simple USB fan. You can use this with a power bank br Preparation: a Coreless motor, a USB wire, Popsicle sticks, hot glue, pliers.