Exclusive 5 Channel Model with Unequaled Comboplus Combination Therapy. 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. This is the ONLY five channel device available, making it reliable for any rehabilitation or hospital setting. 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. The two-year warranty ensures customer satisfaction.