Summer cooling fan seat Cushion 1.Material: air mesh 2.Internal: nylon 3-Dshapes 3.cooling fan inside 4.Gift bag package Usage: 1) Please place cushion and stability 2) If you choose the USB-powered, plug and play support for this product 3) If you choose the cigarette lighter power supply, will start in the vehicle cigarette lighter plug car cigarette lighter socket 4) The product patent structure, structural stability. 5)  please remain seated, let the front seat in the middle of big snow between your legs. The rear seat can also be forward.7) The time when you left, please pull out the power plug 8) product preservation, please be careful not to pay attention to moisture and stress.