The Intelect® Legend 2 four-channel combo device is a four-channel electrotherapy, ultrasound therapy (1 and 3 MHz) and combo system used with or without an optional cart. Twelve waveforms are included for electrical stimulation: VMS, Interferential, Premodulation, Asymmetric Biphasic, Symmetric Biphasic, High Volt, Microcurrent, Russian, VMS Burst, HAN, Direct Current, VMS FR. This equipment is to be used only under the prescription and supervision of a licensed healthcare professional.