A-szcxtop USB LED Cooling Flashing Fan Programmable Edit Word for PC Laptop Notebook Desktops Blue lights Keep cool and display cool messages at your office or on the go with the USB LED Message Fan. Applicable to USB interface with the various types of computer or electrical equipment, can be compatible with USB 1.1 and USB 2.0. Fan blade with LED luminous software board, rotation can show LED advertising characters or patterns Plug and Play, only need to insert the USB export and press the switch can produce fresh wind. The fan body metal hose bendable, make USB fan blowing in any direction.