More and more people are suffering from muscle pain and tension. This limits mobility and reduces quality of life. However, less movement also means that the muscles are hardly exercised, creating a vicious cycle. Constant visits to the doctor or expensive therapies with physiotherapists are the unavoidable consequence. The Prorelax TENS+EMS DUO System is a small, handy digital electrostimulator with two helpful functions that can be quickly and effortlessly used anywhere. Additionally, it is cheaper than two separate devices. Completely free of side effects, the Prorelax TENS therapy device for back pain offers effective TENS pain therapy for the back in cases of acute and chronic issues.