I purchased this for pain relief. I am getting ready for a knee replacement and I use it to help relieve the pain. It has stimulation that is mild and harder, if, you need it. It is easy to use and works very well. You can put the sensor patches on knees, shoulders, lower back, anywhere, that is hurting and reachable.
I have to admit that when my doctor suggested a TENS unit for chronic pain, I was pretty skeptical. WOW... was I shocked. I use this for chronic back and shoulder pain from an auto accident. It really works and I am now a walking billboard for the TENS units!!!! This particular unit is sleek, compact and convenient when I when I go on trips.
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