?USB Powered & High Compatibility?The vehicle fan is only powered by USB(no battery in it),which can be plugged into equipment with USB port,such as car charger,laptop,power bank and power adapter.Compatible with most of air vents of cars whether it’s vertical or horizontal,it can be used in SUV,RV,sedan,van,truck and other cars.You can also plug it in to use as a desk fan. ?Easy to Install & Grip Tightly?The clip of the car cooling fan has metal core with rubber cover.It grips the vent tightly and will not scratch your vents at the same time.Just push it onto vents to install within seconds.very suitable for hot summer,bringing you to provide cool for your family Air. ?3 Speeds & LED Color Light?The car fan can adjust the wind speed by pressing a button,Click open and all at once adjust air volume, Speed1 (low wind speed); Speed2 (medium wind speed); Speed3 (strong wind);Long press can turn on color lights.can meet your different uses. ?No Visual Blind Spot?Make Driving More Comfortable,Place it onto the front vent to cool the driver or the passenger.Place it onto the rear vent to cool your kids or pets in back seats. ?Small But Powerful?Portable car cooling fan is made of ABS material and pure copper motor,low energy consumption,low noise.7 Piece ABS fan blades,the air volume is larger,the cutting is more delicate,and the air supply is more uniform and soft.