1Diagnostic Scanner Tool: This VCI3 tool is designed to support diagnostic systems based on Can network, it's a extremely fast yet very compact diagnostic tool. 2Wifi Connection: You can work without wired connection to diagnose your truck, avoid damaged data cables and other problems of wired connections, and there is a USB connector for wired connection. 3Unique Function: Check and adjustements, conversion, maintenance, campaign, bodywork, fault codes, fault reporting, programming of control units. 4Application: The device is designed for full service trucks, buses and other heavy vehicles, but it does not work with trucks and engines manufactured before 2004. 5Multi Language Support: English, German, Spanish, French, Japanese, Dutch, Polish, Portuguese, Swedish, Norwegian, Finnish, Turkish, Italian, Czech, Russian, Chinese.