Highlight of XTOOL AD20: Smart: Advancer AD20 is a Smart OBD Dongle with integrated diagnostic module and cloud services. Utility: Provides various functions like DTC scanning, Components tests, trip recording, driving skills monitoring, etc. Convenience: Connected via Bluetooth, controlled by smartphone. AD20 is a great tool for all vehicle owners. Free Update: The latest Bluetooth 5.0, supports Android and IOS. AD20 software is independently developed by XTOOL,the software is free updated Hihg Quality:AD20 Full Pin High-quality chips and shells are tested repeatedly before delivery, and various problems can be solved through hardware and software upgrades. .