TENS and Muscle Stimulator is a portable and DC3.7V battery powered multifunction device, offering both Transcutaneous Electrical Nerve Stimulation (TENS) and Powered Muscle Stimulation (PMS) qualities in one device. Operations: 1) This device is intended for use on healthy skin. 2) The electrode pads are for single patient use. 3) Intensity is based upon your level of comfort. 4) For first time use, it is recommended to choose low intensity and short time. After adapting to the intensity, gradually increase the massage intensity until you feel comfortable. 5) If you feel pain, dizziness, or discomfort, please stop using. Regular Application Principles 1) Find the exact pain point or the area where the muscle aches most. For best relief of pain, place the electrode pair from one channel on either side of the pain, or you may place one electrode on the painful site and the other near the site of pain. 2) Intensity: The intensity can be gradually increased up to the point when it becomes uncomfortable. Always stay below that point of discomfort. 3) Recommended application duration and Program selection: For first time use, choose program 1 at a low intensity level to treat for 10 minutes per day, and then gradually up to 3 times a day. You may increase the intensity and time after you have become familiar with the device and feel for the stimulation. Stay with program 1 for a few days before trying any of the other programs and intensity settings. It is difficult to recommend a particular program for a specific type of pain and it is usually determined by the user’s feel of relief. However, if you do not feel any relief of pain after having tried different programs and intensities for a period, it is recommended that you consult with your physician. 4) If the stimulation sensation becomes weaker or disappears, you may increase the intensity by pressing the up key (+) to a point when the stimulation becomes uncomfortable, but if the sensation does become uncomfortable, press the down key (-) to decrease the intensity. Always stay under the point of discomfort