TwinB is our newest product for the oversea market in the year of 2009. It is a good news for our worldwide customers and users of gt1 and star tools. TwinB has all functions of Benz C3,c4 and Bmw GT1 diagnostic tools. TwinB full package includes MB Star C4 and TwinB GT1 Pro, which is small and has all functions of GT1 multiplexer. The setup of software will be easier and more simple.Only one hard disk will cover and replace three kinds of software DAS, DIS and SSS.