... wider use in clinical application.4. The best USA RF laser tube, Stable performance, high effective, No consumable costs5. Focal ... 6. Easy to disassemble the handpiece and hang in the machine. Parameter: Fractional Co2 LaserModel VF7 Basic informationLCD screen8.4 / ... : After you get the machine, there is user manual, maintain manual, training CD guide you to operate the machine. 3w co2 laser machine