EHE012PRO TENS Unit muscle stimulator is the professional grade premium model of the Easy@Home TENS unit product line. This rechargeable TENS machine is perfect for back pain and other forms of pain relief management and therapy. The 012PRO TENS (Transcutaneous Electrical Nerve Stimulation) electric massager delivers electric impulses to nerves, muscles and cells on different parts of the body. The device is wonderful for muscle recovery and relaxation after physical exercise by athletes at all levels. With 2 independent outputs, you can make your choice for a customized session for two different areas by simply pushing buttons. While in use, see the remaining treatment time, the chosen auto program (Massage, Beat, Knead) and Intensity level for each output on the backlit LCD screen.