The clip helps car fan get fixed firmly on the piece of the shutters. There is an antiskid that can help to fix the fan, prevent the fan from shaking up and down during your driving. Make a comfortable and undisturbed driving experience for you Press the night light button to turn on/ off the rgb light, help you find where the fan is at night. Press oscillating button, the car fan can be rotated horizontally by 90 degree. The USB powered car fan is compatible with car charger, power bank, phone charger, laptop, which improves the air circulation indoors and outdoors. Press wind speed button 1-3 times to set a proper wind speed among low/ medium/ high mode.