Knee Protector Charging, Heating, Vibrating Knee Infrared Physical Joint Leg Features: The heated knee has heating and vibration modes, providing great relaxation and comfort for your knees, elbows, and shoulders. The heating function can promote circulation and further stress. Massaging the knee heating pad and vibrating core can simulate real kneading. You don't need to stay at home all the time, but you can wear it anytime, anywhere. You can wear it to work, study, sleep, do household chores, etc. It is very suitable for the elderly and young. The three in one heated pad is not suitable for the knees, but also for the elbows and shoulders. The knee heating pad is equipped with an extension strap, which not helps maintain the position of the knee, but also allows you to use it on your arms, thighs, knees, calves, and ankles. For this type of massage knee protector, press and hold the button to start or end. Keep the machine in the knee/elbow/shoulder position. Then press the temperature button to turn on the heating function, and press again to adjust the temperature. Press the vibration button to turn on the vibration function, and press it again to adjust the vibration. This heated vibration knee is the choice for birthday, Thanksgiving, and Christmas gifts for mothers, fathers, men, women, parents, or others. I my gratitude and concern for you. Product Description: 1X knee