Review on Stay Cool and Comfortable with IO Crest Mini USB Powered Desktop Cooling Fan SY-ACC65055 by Tiffany Steele

It's pretty quiet and moves enough air to be comfortable - I only use low speed most of the time. But it's not as quiet as it could be - the hum includes a distinct ticking. This doesn't just apply to the audible noise it makes in the air: depending on your computer, it can also produce electrical noises that can be heard in your computer's headphone jack. current position, it simply crumbles so that the slightest nudge will point it in a new direction. If it is a flat surface, this is not a problem in practice. The biggest problem is that the fan blade fell off the motor shaft when it arrived. I had to remove the grill cover (not easy as four tight mounting screws hold it in place) and reattach the blade with a bead of glue.