Easy 2 button operation,plug and play, no battery needed.7000 Trouble codes and define descriptions included in the manual book Works on all 1996 to 2017 cars and light trucks sold in the United States, some 1994 and 1995 models are also ok. Features an easy-to-read backlit LCD screen, multilingual menu and DTC definitions and standard 16-pin OBD-II connector--no additional cables are needed Supports the CAN (Controller Area Network) protols and all other current OBD-II protocols With this tool,you do not have to go to car garage to check the engine lights,read fault codes and clear fault codes by yourself.