Product Description 1.Heating & Vibration Massage Heated knee massager has 5 heating levels and 3 vibration modes, providing arthritic knee pain relief and injury recovery. The heating function can boosts circulation, further relieves muscle soreness and cramps. Heated brace wrap can help you relief joint pain, muscle stiffness and joint swelling. 2.Relief the pain It combines perfectly with heat therapy and vibration. Helps relieve pain in the knee joints and relax the stiff, tense muscles around the kneecap. It could also stimulate blood flow and improve blood flow to reduce stiffness in sore joints. It has a nice gently stimulating vibrating massage for your joint. 3.Multi-PurposeIt is not only used for knees, Knee Heating Pad is equipped with extension straps, which means you can use it to heat your arms, thighs, knees, calves, ankles. Warm your whole body. 4.Easy to UseLong press the button for 3 seconds to start or end the work. Fix the machine at the knee/elbow/shoulder position. Then press the temperature button to turn on the heating function, press it again to adjust the temperature. Press the vibration button to turn on the vibration function, press it again to adjust the intensity of vibration Features 5 levels of stepless temperature adjustment, starting at 50 degrees, every time you touch the upshift button, it will increase by 5, and you can adjust it to the highest level of 70 by touching 4 times in total There are 3 modes of EMS function, and each mode can be adjusted from weak to strong with 9 levels. According to the different muscle tolerance of the human body, electrotherapy massage is provided according to the most comfortable strength acceptable to the user. 4. The appearance is simple, and the color is suitable for foreigners' aesthetics. It is ergonomically cut and can be used on shoulders, elbows, knees and other three parts of the human body that most need heat.