WARNING:The unit cannot be used by people with pacemakers and or defibrillators.12 Month Warranty We provide full refund or free replacement for 12 months.Replacement Pads:www.amazon.com/dp/B08138F7NVwww.amazon.com/dp/B08137X59G or search it with ASIN B08138F7NV, B08137X59G on AmazonNote: 1). Please follow the directions for use in the user manual carefully. Incorrect operation might cause unexpected shocking. 2). To keep the pads sticky, please clean your skin with rubbing alcohol before you attach them. Or use clean cloth and dip with rubbing alcohol to clean the pads after using. When you are done, put them back on the pads holder. Key Features 【Drug Free】 - premium pain management solutions to relieve your pain in a few minutes without taking pills. 【Multiple Levels & Modes】 - it has 12 massage modes and 40 levels, which delivers high frequency stimulation to your body’s different muscle group, including back, knees, elbow, shoulder, hands, feet and leg, etc. 【90-min Timer】 - Select the mode and set the time you desired, from 5 min to 90 mins to give your muscle a deep relaxation and therapy. 【Intuitive Design】 - The design is simple and it’s easy operation, perfect for daily use. 【Travel Friendly】 - the TENS unit is small and compact design for mobility, it comes with a shockproof travel case for easy storage. 【Dual Channels】 - can be used on two areas or two people simultaneously. What’s Included? 1×Shockproof Case 1×TENS Machine 2×Lead Wires 6×Electrode Patches 2×Pad Holders 1×User Manual Statements regarding dietary supplements have not been evaluated by the FDA and are not intended to diagnose, treat, cure, or prevent any disease or health condition. Do not use this product if you have an implanted defibrillator, cardiac pacemaker, or any other implanted metallic or electronic device. This product is prohibited for people with heart rhythm problems. Do not use this product if you have undiagnosed chronic pain. Do not use if pregnant or in labor. Do not use if you have cancer. Keep out of reach of children. Refer to user's manual for additional warning and cautions. Individual results may vary. The information provided is not intended to be used for medical diagnosis or treatment or as a substitute for professional medical advice. Please consult your physician or qualified health care provider regarding your condition and appropriate medical treatment.Statements regarding dietary supplements have not been evaluated by the FDA and are not intended to diagnose, treat, cure, or prevent any disease or health condition.Disclaimer: While we work to ensure that product information is correct, on occasion manufacturers may alter their ingredient lists. Actual product packaging and materials may contain more and/or different information than that shown on our Web site. We recommend that you do not solely rely on the information presented and that you always read labels, warnings, and directions before using or consuming a product. For additional information about a product, please contact the manufacturer. Content on this site is for reference purposes and is not intended to substitute for advice given by a physician, pharmacist, or other licensed health-care professional. You should not use this information as self-diagnosis or for treating a health problem or disease. Contact your health-care provider immediately if you suspect that you have a medical problem. Information and statements regarding dietary supplements have not been evaluated by the Food and Drug Administration and are not intended to diagnose, treat, cure, or prevent any disease or health condition. Amazon.com assumes no liability for inaccuracies or misstatements about products.