The microprocessor-controlled Quattro II™ is a professional, 4-channel electrotherapy device that provides IF 4-Pole, IF 2-Pole, Russian, EMS and TENS waveform, as well as 4 channels of electrical stimulation output. Large, easy-to-read graphical LCD display has exact dial performance and programmable timer. This unit is designed for tabletop, therapy cart or mobile use.