Built-in 8 high-speed fans, the 3D mesh is twice as powerful Can be used in the car or at home, supports all 12-24V car seats/home/office Three-level wind speed is adjustable, easy and fast to use The seat cushion is removable and washable, and the zipper design on the back allows the function panel to be taken out for cleaning 40dB low noise impeller fan will not affect your driving during operation The partitioned air guide plate with air guide grooves consumes less air and has a large air volume. The wind from the two rows of fans on the hydrodynamic wind deflector does not collide and does not offset the wind energy It can be plugged into USB for power supply and will not affect the use of other car electrical appliances such as driving recorders and car chargers. It is recommended to plug in a USB power supply port with a current of 2.0A for better effect Hollow mesh, good breathability, soft texture The back is treated with silicone anti-slip and will not shift during bumpy riding Specification: Size: 43x43cm Weight: 620g Material: ice silk mesh + cotton + fan Power: 5-10W Applicable voltage range: 12V-24V