... ); 4, 9" Car Portable PC Headrest; 5, USB/SD: Up to 32G Model No.: HB902SPC (9" Car Headrest ... PC Specification:1, 8V-16V Wide Voltage;2, USB/SD Reader (up to 32G);3, Built-in Wifi function ... Wide Voltage;2, USB/SD Reader (up to 32G);3, Built-in IR/FM Wireless Transmitter;4, Built-in ... Pen; x2 Joystick; X2 C&T IR Wireless Folding Headphone IRDA and X2 IR Headphone Bag (Optional)Special Features: 1, Power: ...