The first somewhat discouraged with myself, with regard to the quality of the product.
Take I wanted it to in my car (Hyundai Getz - Protocol: ISO 9141-2) read out the fault memory. The other functions that provides my ECU, I have considered only briefly.
As software for the OBD2 adapter I used Torque Lite for my phone (SGS2). What you should know is that the car ignition must be activated so that the adapter is active.
Reading out the error memory and then deleting went quickly and easily by equip.
Overall, the product of the price has absolutely fulfilled its purpose. A deduction of points there, because no documentation is included and you have, for example, rates in the Bluetooth PIN (1234).