12V Fan Cooling Air Fan Powerful Dashboard Electric Car Multicolour Fan Low Noise 360 Degree Rotatable with 2 Speed Adjustable for CarProduct description Product Feature: Fan Size: 4. 1 inches Diameter 5 PCS ABS Fan Noise Level: Lower than 50db Input Power: 12V DC Cigarette Lighter Socket Weight (without package): 1. 1 lb (0. 5kg) Cord Length: 70inches ( 1. 78m ) Operating instruction: 1. Before use, please keep the switch off; 2. Start the car and plug it in the cigarette lighter; 3. Adjust the angle of fan and turn on the switch for selection. There are "1" and "2" for selection;