Combines bamboo charcoal and jade stone heat therapy with vibration massage. Bamboo charcoal naturally absorbs impurities and supports healthy circulation. Jade stones help deliver heat deep into tissues for maximum relief. Vibration massage with 3 selectable massage modes and 3 selective intensities. Heat and massage functions can be used independently or together. Made from soft-touch neoprene for breathable comfort and a secure fit. Cordless and rechargeable design allows for hands-free, on-the-go use. Targeted for use on knees, arms, joints, and legs. Fits girth up to 18 inches. Includes USB charging cable and USB AC adaptor.