Unfortunately, unfortunately, there is no off switch! That's right, there is a single but no off switch on the part of what I had urgently sought. I do not understand something, so a star deduction. I wanted the part using a USB fan who also has no off switch to operate it. Please Whoever comes up with the idea to install a switch of the part though but once again not off (which then goes only by "Timeout")? Something is, I may say so, harebrained!