The mini ELM327 HH on-board Bluetooth OBDII interface OBD diagnostic analysis tool is highly recommended to you because it is a free program that allows you to use PC and hardware interface to obtain your car information″ S computer. The program is very easy to use and install. It can work on all OBD2 and EOBD vehicles, which is very convenient. Y. It can read general and manufacturer-specific diagnostic codes and display their meanings (there are 3000 general code definitions in the database). Don/x27;t doubt it! features Feature： 1:Made of high-quality materials 2:Recently developed car wireless (Bluetooth) analysis tool 3:Working on all OBD2 vehicles 4:Very easy to use, easy to learn, easy to install 5:It can also be used with PC with Bluetooth card Specifications: 1.Color: black 2.LED indicator: OBD input/output (Tx/Rx), RS232 input/output (Tx/Rx) 3.Working voltage: 12 V 4.OBD-II protocol supported: ISO15765-4 (CAN)/ISO14230-4 (KWP2000)/ISO9141-2/J1850 VPW/J1850 PWM 5.Dimensions: 2.68x1.73x0.94 /quot;/6.8x4x2.4 cm (L x W x H) 6.Modena compatible vehicle compatible with OBD-II The package includes Package includes: 1x vehicle diagnosis 1xCD-ROM