... 4, 9" Car Portable PC Headrest; 5, USB/SD: Up to 32G Model No.: HB902SPC (9" Car Headrest ... Specification:1, 8V-16V Wide Voltage;2, USB/SD Reader (up to 32G);3, Built-in Wifi function ... :1, 8V-16V Wide Voltage;2, USB/SD Reader (up to 32G);3, Built-in IR/FM ... Format16:9Digital PanelHD DigitalIR/FM TransmitterYESPIXEL 800x480SD/USB SlotUp to 32GBRIGHTNESS500cd/m²HDMI inputYESTouch ScreenYESAuto PowerOnYESS ...