Compact - No Effect on Driving VisionThe dimension of a car fan: 4.3 x 4.3 x 4.3 in /11 x 11x 11 cm, which is compact and suitable to be set at the shutters of the air conditioner, and has no effect on vision when you are driving. A car fan will make a comfortable and undisturbed driving experience for you.Stable & 360 Adjustable The silicone tail behind the clip fan brings decent pressure, which is a simple and effective design to help car fans get fixed firmly on the piece of the shutters on the air conditioner or any sheet that is thicker than 3mm. The angle between fan and the tail can be adjusted within 360 years to make wind blow the needed direction, and there is a knob to loosen or tighten the adjusting resistance, so you can rest assured the stability and concentrate on the way ahead.Powerful & Low NoiseThe The fan is equipped with a high-quality and long-lifespan brushless motor, which offers strong and constant power to keep the car fan working long time in an excellent performance. Although it's very powerful, the noise is still less than 50db, so you can enjoy a pleasant and quiet summertime in the car.3 Speeds & Night Light Press button " " 1-3 times to set a proper wind speed among low/ medium/ high mode. Press the button to turn on/ off the night light, help you find where the fan is at night. Certainly the car fan will meet all your needs under any weather circumstances and lighting conditions, blowing away hot splashes and odors.USB Powered - Widely Used The USB car fan is compatible with car charger,power bank, PC, laptop, etc, which improves the air circulation indoors and outdoors, especially for where there is no A/C. The linked USB cable is 1 meter in length, it's long enough and very convenient to get connected to USB interface inside vehicle: SUV, RV, boat, camper, car, even other places instead of car interior: outdoor party, bedside table, kitchen wall,etc.