USB Portable & Flexible Fan High Powered Fan for Laptop Cooling WHITE. This fan is ideal for keeping you or your computer components cool. It is compatible with all kinds of USB-enabled devices, such as mobile power banks, computers, laptops, and car chargers. Made from super soft and flexible silica gel materials, its innovative pocket size and detachable body allow you to put it in your bag when not in use. It operates with extremely low noise, with the loudest noise being only 25.8db. The product size is 14.5 x 8.9 x 1.5 cm.