THERAPEUTIC WARMTH IN THE COMFORT OF YOUR OWN HOME. This heat pad provides temporary muscle pain relief for people with muscle strains and sprains, joint pain, back pain, and inflammation. WATER IS NOT NOT REQUIRED. This moist heating pad produces its own moisture from humidity in the air. THIS PAD ISEASY TO USE. This heating pad has user-friendly LCD controls that allow the user to set and monitor the treatment temperature and time. YOUR SETTINGS WILL STAY SET. The BodyMed Digital Moist Heating Pad has a lockout feature that keeps the controls from being accidentally touched and changed during treatment. AUTOMATIC SHUT OFF SAVES YOU THE WORRY. This heating pad with auto shut off eliminates worry about forgetting to turn it off. The BodyMed heating pad allows the user to set the shut-off time in one-minute increments up to one hour. The preset automatic shut-off time is 15 minutes. THIS IS THE SAME PAD WE USE IN OUR CLINICS.