The TRAKK Knee Brace Massager with Soothing Heat, Cold Pack, and 3 Vibration Massage Modes is packed with features to help you reduce pain and strengthen muscles. This rechargeable massager fits securely around your leg and includes a hot/cold therapy pack that provides instant relief. The included ice pack can be recharged in your freezer and provides cold therapy to reduce swelling and inflammation. Relax and soothe your aching knees with a heated Knee Wrap Massage. 3 massage modes provide relaxation and comfort to your knees. A rechargeable 8000mAh power pack is easy to charge and keeps your massager running to provide relief after intense workouts, sporting games or just everyday walking.