Features: 1. The portable car fan is equipped with durable clips to securely fasten the fan to the rear seat headrest. You can easily and quickly install and remove manually without any tools, and you're set up in seconds. 2.3 gears wind speed setting, you can choose the appropriate gear according to your needs. The maximum speed is about 4000rpm, which is very powerful for its small size. The car cooling fan has a built-in brushless motor, the fan works very quietly, the noise is close to 30dB, and it will not disturb the resting passengers. 3. Car fan size: 11*10 cm/4.3*3.9 in. This small electric vehicle fan doesn't take up much space in your car and is energy efficient. The rod that supports the fan is rotatable and you can adjust it at different angles to improve air quality throughout the car and keep it cool. 4. Considering the turbid air in the car in summer, we have made an innovative design, adding a piece of aroma diffuser in the middle of the fan, which can be installed inside for use. Makes the air in the car fresh and slightly scented 5. Car circulating fan with USB cable, the power cord is long enough to easily plug into a car charger or power bank. The car fan can increase the air circulation in the car and help the car to ventilate and remove fog. It fits all family cars, sedans and SUVs of different sizes. The USB fan is also convenient to carry outdoors, such as in a stroller. Specification: Gear: 1-3 gear Voltage: 5V Current: 1A Size: see picture for details Weight: 210g/7.4oz Power interface: USB Fixable position: seat back Product List: 1*Car fan 1*Aromatherapy tablet