Designed to be attached to a standard 40mm computer fan and give you something to hold while adjusting the focus on an FPV camera. Print the optional stand if you want to use it on a desk.

The electronics board is from Aliexpress: https://www.aliexpress.com/item/1005004616088520.html however any boost converter suitable for your needs will do.

The camera mount is for Nano (14mm) cameras.