Review on 💨 Easycargo 2-Pack 40mm USB Mini Fan: Quiet and Portable Cooling with Multi-Speed Control (45x45x23mm) by Elizabeth Morrison

40mm fans are great. Wide range of speeds. From barely to a decent rush for the size. They get loud when they're high. They also have a memory feature that allows you to turn them on with a timer. So if you only want them on for a few minutes a day or whatever, you can set them to turn off and on at the same rate without having to adjust them. Small enough that you can use velcro or double-sided tape without worrying about it falling off. Unfortunately no suckers but still worth 5 stars.