This one packs a shock. I had the original unit before this one but it broke, I used it daily and loved it they quickly shipped me this new model and wow what a dramatic and painful difference. It is much bulkier than the original design so it is difficult to get into the eye muscle areas correctly. The longer I tried to use it the more sporadic the intensity grew. I could not bring myself to love or like it as much as I did their original design.