Exclusive 5 Channel Model with Unequaled Comboplus Combination Therapy. This is the only 5 channel device available. All channels allow fully independent treatment setups as well as ComboPlus technology offering Ultrasound in combination with Interferential, Premodulated, Biphasic, High Voltage pulsed stimulation, and Russian stimulation using any available electrotherapy channel. Patented three-frequency ultrasound - 1, 2, and 3 MHz - available to offer the greatest flexibility in depth of treatment. Additionally, the applicator soundheads are available in three different sizes. The exclusive Target and Target Sweep features for interferential treatments allow for the easiest and most efficient way to focus treatment precisely where it's needed.