So you would like to generate energy for your devices off the grid? The INFINITE AIR 18 has you covered. It is a portable wind charger with 18V output. It can charge USB devices with a 8mm adapter cable. The INFINITE AIR 18 has a wind resistant design.
This wind charger works in winds from 15mph to 40mph. It stands 109.8cm tall. You can find out more about it here.