E diag mini is an OBD-II diagnostic tool with professional-grade function. Simply plug the Ediag dongle into your car, connect it to your smartphone via Bluetooth, and your smartphone becomes a professional OBD diagnostic tool. Full professional level functions: like reading and clearing codes gathering real time data with the ability to graph it reading ecu data running actuation tests and bi-directional special Functions, Full software, full reset, coding, functions for all cars Comes complete with all car software