V2.1 Mini Bluetooth Car Fault Diagnostic Tool Automotive Engine System Scanner.Specification: Model Name: ELM327 Electronic: No Hardware Version: V2.1 Item Height: 3cm Item Length: 4.8cm Material Type: Circuit board + ABS Item Type: Engine Analyzer Special Features: Bluetooth Item Weight: 28g Software Version: NEW Voltage: DC 12V Item Width: 2.5cm Compatible phone: Android smartphone Compatible software: Easy OBD2, ScanMaster ELM, WOBD Crazy, etc. Continuous App Updates For Android