KNEE HEALTH CARE SOLUTION - This multi-functional knee massager is designed to relief soreness, discomfort for anyone suffering from any type of knee issues. The built-in air bag kneading equipment, multi-frequency vibration and heating pads which with an adjustable temperature between 115℉ to 130℉ degrees are designed to ease stiffness and circulation, with an automatic shut-off function for safety. POWERFUL FUNCTIONALITY - This knee pain massager offers 5 functions and 3 levels for heating, vibration and intensity eachly, which can be used separately or in any combinations. For exemple, the soothing heat and gentle vibration is ideal for relief pains throgh delivering heat directly to the joints for improving circulation which helps the tissue to recover more quickly. A COMPREHENSIVE MASSAGER - This delicat wearable knee massager is not only an ideal solution for your knees, but can be also applied to your other parts like elbows or shoulders. In addition, more attention is needed in your daily life to the protection of the knee joint. With this knee massager twice a day, once 15-30 minutes, away from knee pain issues.