My doctor recommended this for my chronic back pain. I have never had any success with any procedure or other similar kind of therapy. So, I was amazed that this simple device actually helped my back pain. But, I didn't stop there, I have pain in my ankles and knees since many years of athletic sports. I used the combo3 plus on both and found relief on those body parts as well.
High quality unit with the professional features I expect. Highly satisfied and would definitely recommend to my physio friends. Pads are super sticky and can be used over and over for at least a dozen uses if not more with proper care. Unit itself is lightweight and has a belt clip for easy transport.