The USB (Universal Serial Bus) LED Clock Fan, is a brilliant new innovative product helping you to stay cool at work, whilst also allowing you the extra benefit of keeping track of time. The LED Clock Fan plugs neatly into your USB (Universal Serial Bus). There is no installation required, simply plug in & go. The clock will keep the time ever after being removed from the USB (Universal Serial Bus) port to deactivate the fan. A truly nifty little office gadget.