The easiest way is to buy a 50W household breeze ceiling fan with a blade diameter of 2 meters, then make a bracket that can rotate 360 degrees, install the ceiling fan horizontally on the bracket and add a tail to track the wind direction. The ceiling fan will rotate when the wind blows towards the blades, and the power cord of the ceiling fan will output 220V AC. If you connect it to a socket, you can plug in your mobile phone and MP3 charger to charge
How to make a small wind turbine (can be used to charge mobile phones and MP3s)
Introduction The easiest way to make a small wind generator (that can be used to charge mobile phones and MP3s) is to buy a 50W household breeze ceiling fan with a blade diameter of 2 meters, and then make a 3