JOYING New Mini Elm327 OBD2 Blueooth Diagnostic Scanner Car Auto Dongle for Android Head Unit Android Car Stereo Dvd Player. Model name: ELM327 OBD2 bluetooth Type: code readers & scan tools Output Interface: Bluetooth Support OBD-II protocols: ISO15765-4 (CAN) ISO14230-4 (KWP2000) ISO9141-2 J1850 VPW J1850 PWM Read diagnostic trouble codes, both generic and manufacturer-specific, and display their meaning (over 3000 generic code definitions in the database). Display current sensor data The Blog about how to connect the OBD: https://www.carjoying.com/Joying-blog/11.html