This is a pic of my setup when the my Tello is being being tested and worked on. It is really helpful when doing adjustments on the fpv goggle setup. I sit it on a USB muffin fan from Amazon and it stays cool. . Also in the pic is a generic wifi extender that works well also from Amazon. Both the fan and the extender get power from my portable power bank. I am not sure if it is ok to post links to sellers but if it is and anyone wants them I will post.