1. Protection Assured: Our massage hot knee pads prioritize your safety with a 5V working voltage. You don't have to worry about any threat of electric shock as the heating module accurately stabilizes the temperature, preventing burns while providing soothing relief 2. Easy to Use: Optimize your with our massage hot knee pads featuring three vibration strengths and five heating gears. Use the simple icons on the LED touch screen to enjoy both modes simultaneously or turn heating or vibration mode separately. Experience ideal relief from muscles and discomfort in a comfortable and unique way 3. Wireless Design: Delivering therapeutic heat, our Massage Hot Knee Pads improve your life by providing immediate comfort to alleviate discomfort and stiffness, suitable for all ages 4. Broad Applications: Our Massage Hot Knee Pads are for soothing muscles in your knees, elbows, shoulders, arms, thighs, and calves. Widely used to relieve discomfort and ideal for those with joint discomfort