If You Have Chronic or Acute Pain Just Try TENKER TENS Unit Electric Muscle Stimulator Massager for Relief WHAT IS TENS? TENS stands for "Transcutaneous Electrical Nerve Stimulation" – a safe, non-invasive, dr ug-free method of pain relief used by physical therapists and prescribed by doctors for over 30 years. The TENKER TENS Pain Relief System produces low-voltage pulses that when electrode pads are applied to your skin, stimulates nerve fibers to help block the pain signal to your brain. Also, it may increase natural endorphins, “the body’s feel-good chemical” –a natural pain reliever. What can TENS do? Most commonly used for Neck/Shoulder/Back/Elbow/Hand/Knee/Leg/Chronic Hip pain Sports Injury, Muscle Strength Built, Muscle Fatigue, Muscle Sore, Muscle Tension Arthritic, Sciatic Pain, Achilles Tendonitis, Cramps, Peripheral Neuropathy About 1/2 wire and 1/4 wire use tips: 1. For this 1/2 wire. please plug them in on either side of the pad. 2. For 1/4 wire, please plug a color coded positive and negative wire into a pad. Note: 1. Please turn off the device before you touch the pads. 2. If you only plug one wire, you should make sure that two pads connected and placed on your skin at the same time so that the unit can work properly. 3. Not suitable for pregnant women or heart disease and hypertension patients, and not safe for people with pacemakers. 4. In many cases, this stimulation will deliver immediate pain relief. Pain relief varies by individual and by the type of pain you are in.