1,7 inch touchscreen 2, Built-in OBD-II diagnostics tool 3,Region free disc player 4,Bluetooth pairing ... Inch Car DVD Player with GPS, DVB-T, and OBD-II Diagnostics Introducing the Chimera:Road Carnival 7 inch Car DVD ... lead you to your destination, and best of all, OBD-II diagnostics to help you detect your car’s problems and ... Inch Car DVD Player with GPS, DVB-T, and OBD-II Diagnostics