Leegoal Mini Vacuum USB Case Cooler Cooling Fan Notebook Laptop it allows faster extraction of the hot air out of a running system, which stabilizes the operation of the NB and prolongs its lifetime. Universal clip for fastening USB power interfaces, compatible for all major NB brands Light and handy. compared with other bulky NB cooling pads, it is very suitable for storage, and carry Simple styling, elegant shiny paint finish ,and Blue LED light decorations, all enhancing the technological feel of the product. 180-Degree rotate able wind positions and two-speed cooling control allowing you switch freely for fan speeds and angles