Apart from keeping and enhancing all the functions of the X-431, X-431 TOP enables tests of vehicles at a distance of 25 meters with the help of Bluetooth communication technology.  X-431 TOP can give you the most efficient, stable and easy information without leaving your desk.  Equipped with the most comprehensive functionality, it can save the expense for the users to buy, store, upgrade single function products and conduct training. X-431 TOP provides a large technical database for automot