Features: This car seat back cooling fan uses three gear adjustment. It can be adjusted for tightness. You can adjust the gear according to the size of the headrest bar; This USB charging auto headrest ventilations fan come with a rotatable fan base. It can rotatable 360 degrees. This is perfect for installation in every corner of the back seat of the car. This electric car cooling fan provide strong wind to cool down the rear seat passenger with 2 rotatable fan head, perfect for keeping the rear seat passenger cool and comfortable; This auto rear seat air fan can be easily installed manually without any additional tools. All you need to do is tighten the bottom swivels nut, pluggings it into a USB power outlet, This car powerful cooling fan have a USB power interfaces. It is used in all car model, including car, SUVs, commercial vehicles, trucks, buses, excavators and cranes, etc. This electric seat back fan is flexible and light. Whether you can carry it in your car seat or car headrest, it will not take up too much space to you. Let your daily car driving and life more comfortable and relaxing. Specifications: Material:ABS Power:USB Wind Speed:3 Gear Package Includes: 1x Car Fan note: Please allow 1mm errors due to manual measurement. Due to the difference between different monitors, the picture may not reflect the actual color of the item.