It is make of ABS, which is resistant to high temperature and aging Its structure is firm and enduring, ensuring safe and long term use Provide 12V and 24V lighters interfaces versions (suitable for cars / trucks), as well as 5V USB interfaces versions, suitable for multiple vehicle models and power supply methods, to meet different user needs It operates quietly, providing powerful airflows while consuming minimal energy 7W highly power motor, 4inch fan designs, strong wind power, effectively promotes air circulation inside the car, quickly cools down and dissipates heat, and enhances driving comfort It can be firmly clamped onto the headrest rod of the seat, without occupying any interior space The installation is simple and fast, and it is stable and does not shake during driving