Description: Adjustable air volume - The air volume of the ventilated seat cushion can be adjusted in three gears. It can be adjusted freely according to the required wind. Quiet Operation - Innovative noise control technology is used to effectively reduce noise during operation and improve comfort. EASY TO USE - Low voltage design, just plug the seat pad into the USB port and the fan circulate cool air to your back legs and thighs. USB is compatible with electronic devices such as computers, and chargers. its Most Car, Truck, Suv, and Van Seats - Standard size allows the cover to fit most car seats. Material: plastic colour: black Package Contents: 1 x Seat cushion Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.