Highlight HH OBD ELM327: 1.This is a vehicle diagnostic tool interface scanner, which is is used to read trouble codes, clear trouble codes and detect fuel pressure and so on. 2.OBDII Software for ELM327 is a free program that allows you to use your PC and a hardware interface to get the information from your carand x27;s computer. 3.The program is very user-friendly, and easy to learn. It is also very easy to install: simply extract the files into a folder on your computerand x27;s hard drive, and youand x27;re ready to go. 4. To uninstall the program, simply delete the entire contents of the folder where the program resides. 5.The software supports four platforms - For DOS/Windows/Android. This product is a non-oem,generic product. Notice: This device canand x27;t work with IOS system. Connection: Android: 1.Open the andquot;settingandquot; of your android,and search bluetoothfrom ELM327:OBDll, then input password 1234. 2.Open your Torque- etting- -OBD2 Adapter Settins- -Connection Type- -Bluetooth- -back- -Choose Bluetooth Device- -OBDII[AA:BB:CC:11:22:33]. V2.1 Mini Bluetooth ELM327 OBD HH: 1. Support : Android/Windows. Please use Android system V4.1 to V4.3 version. 2. It can not support IOS system 3. Bluetooth Passwords: 1234 Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.