The Sanexas treatment machine looks like a big TENS unit, but it is much more than that! A TENS machine is like a X-ray and RST SANEXAS neoGEN device is like getting a MRI. More powerful frequencies and over 20 different treatment programs designed for acute and chronic painful conditions.
It has lots of electrodes that send electrical impulses through the skin with the goal of regrowing nerves. It was not at all painful, just a soothing electrical massage to my arms and legs.