Engineered Performance for Your Cars REVO WORKS FOR VW AUDI SEAT SKODA DO A CAR ONLY NEED 10-MINUTE ONLY NEED PUT THE SPP CABLE TO THE SOCKET OF DIANGOSTIC IN YOUR CAR AND OPEN THE SOFTWARE REVO INCLUDING SOFTWARE AND HARDWARE(SPP ADAPTER) ,IN THE SPP ADAPTER INCLUDING 7191 POINT AND IT DO A CAR NEED 799 POINT ,SO EVERY SPP ADAPTER CAN DO 9PCS CARS