I've had 3 or 4 of these pads, they're warranted for 2 years, but because I use them nearly constantly while awake, I wear them out! I absolutely love this product!! It provides THE Most Amazing Comfort Level, and helps me to take much less pain medication than I otherwise Must Ingest when this product malfunctions*!* Otherwise, we're waiting for the day when they fix the faulty wiring in the power adapter. The pad usually outlasts the plug/adapter unit that features the double power massage/heating levels. Invariably, the massage side, which has a removable plug, shorts out after 1 year, of my serious usage. However, in my defense, I never let it go to auto shut off, I always shut it off after 1/2 hour and then start it up again, a few minutes later*!* This malfunction does Not keep me from buying another pad, and another pad, I'm about to buy my 4th one!!