Dual Speed Control Universal Fit Red LED USB Powered Vacuum Technology External Cooler Notebook Laptop Netbook Cooling Fan World's first patened NB Air Extracting Fan Advance Heat Extractor! It allows a running system, which stabilizes the operation of the Notebook/Laptop & prolongs its lifetime Unbelievable Ventilation Effect That Helps Boost Suction Power Directly From Your Laptop's Exhaust Port. The Result Is A Significant Decrease In Internal Ambient Heat Levels Universal Clip for fastening USB power interfaces. LED Light Will Flash When The USB Is Plugged In USB Powered + Retractable cord + Speed Control Button