Pain management: The EM 59 Heat relieves pain using transcutaneous electrical nerve stimulation (TENS); it works directly on the painful area without medication or side effects Electrical muscle stimulation: The stimulation device also has an EMS function, which can be used to tone your muscles or to regenerate individual muscle groups Massage: You can also use the EM 59 for massage and muscle tension. A total of 64 pre-programmed applications in the areas of EMS/TENS/massage are available. Self-programming (EMS + TENS): frequency, pulse width, on/off time programmable Heat pad: The heating function of the electrodes further relaxes your body and can be used individually or in parallel with a TENS program Safe use: The medical device offers you a “Doctor's Function” with customizable programs to ideally match your personal therapy program How to use: If the Doctors Function has been activated by mistake, no other program can be selected until the Doc.Function is deleted again.