This item is mainly used for instrument clusters correction, audio decoding and also for memory programming. Update through Internet, support most vehicles up to 2004. Features Handhold operation, quick and convenient; also can be connected to computer, updating on line. Applicable to most vehicles up to 2004. Automatically read out mileage and adjust directly at will, no need to calculate. USB port: Plug and Play. Device intelligent identify, all devices can use the same socket. Can be used as a programmer. Let you read, save, display, edit the memory and also send the data back to the manufacturer for technical support. Large display screen, device memory can be browsed and analyzed. On board mileage correction available for BMW with M35080 cluster chip via OBD connector. Support vehicles with NEC cluster chip (Optional NEC adapter is required at US$780.00). Functions Audio and TV decode Odometer correction Applicable vehicles for Audio decoding Lexus, Toyota, Honda, Mitsubishi, Mazda, Benz, BMW, Audi, Volkswagen, Volvo, Peugeot, Renault, Porsche, Dodge, Nissan, Kia, Opel and Transit etc. It is applicable to all the listed models before 2004.