1Support highspeed communication and lowpower sleep mode. Use AT commands to communicate with host devices (PC, notebook, for iOS phone, for iOS tablet, etc.). 2It has a large number of software packages available and they are fully compatible with WIFI OBD AUTO CHECKER. 3Support engine operating parameter monitoring, DTC reading and clearing, MPG meter, etc. Allows you to write your own software on a specified hardware platform if you wish, because the AT commands are fully documented and very well explained. 4Fit for vehicles from 1996 and later. Elder OBD compatible vehicles has a sticker indicates that the vehicle is OBD compatible. Model year 1996 and newer vehicles are compliant by default, and will not have this sticker. 5Manufactured according to the original production specifications, in line with strict quality standards, which is dependable to use.