X-431 Diagun is a specially designed diagnostic tool for automotive technicians.Compact main unit, powerful diagnostic functions, fast and convenient update,universal connectors, make it the first choice for technicians. X-431 Diagun is the standard equipment for technicians.br - Compact main unit ,Standard equipment for techniciansbr - The only diagnostic tool which can work on two vehicles at the same timebr - Launch X431 Diagun Bluetooth technology, wireless communication. 100 m bluetooth communication,Cable communication supportbr - Universal 16PIN connectorbr - Fully inherited diagnostic functions from X-431. Capable of nearly all domestic vehicle makes and Asian, European, American vehicle makes.br - Greatly improved program running speedbr - More convenient software updatebr - 4.