Pain reliever.
I had a Belifu unit that I bought to relieve pain in my lower back, legs and shoulders. I bought a 2 channel unit that I was so happy with that I ordered a unit for my wife who has pain in her knees.  In my wife's case the pain was so severe that she had treatment done by a practitioner who used laser in his treatment. My wife's pain was relieved for a while but returned.  She tried my unit, and it relieved her pain the same as the expensive laser treatment at a fraction of the cost.  Thats when I bought a unit for her.<br />  The Belifu 4 Independent Channel TENS EMS Unit that I got has some added features and I wanted to try it.  I found that the 4 "independent channels" are truly independent. I noticed that my old 2 channel unit were not truly independent of each other. I found when I use 2 channels, adjusting the level of intensity in one channel effects  the other channel.  In the 4 channel unit I don't feel any change in the other channels when I'm changing intensity in any other channel.  Increasing the  intensity from 0 to 30 is very smooth; I think smoother than the old 2 channel unit.<br />  Pain relief is about the same.  The advantage with the 4 channels is that I can cover more areas.  My legs, my lower back and my shoulders  at the same time.
Rating: 5 stars