... 1.USB Powered,fit for PC or car 2.Metal net 3.6 colors 4.With key switch 360 ... adjustment Mini USB fan 1. Altra silent,low noise. 2. 5V Voltage,Power 2.5W. 3. USB Powered, no external power required ... 4.Convenient to use, fit for computer or Car. 5. With ... comfort, close to use, all seasons. 5V mini usb fan 2.5W