XUEMEI Heating and vibrating massage relieve shoulder pain. Built-in heating pad can warm your shoulder promoting circulation and helping recovery from injuries. Provides ultra-comfortable warm therapy for the shoulder joint, helps relieve soreness caused by frozen shoulder, torn rotator cuff, dislocation, sprain, strain and bursitis. Perfect Christmas day or Christmas gift for your family and friends, suitable for chest size: 29 inch - 39 inch, arm size: 9 inches - 16 inches. It provides sufficient warmth and relief for those suffering from chronic shoulder pain, fatigue, stiffness and tendinitis. Features and functions: Heat massage two-in-one shoulder pad - you can enjoy 3 functions simultaneously or separately Built-in 5000mAh battery with large capacity battery 3 level heating and 3-level vibration settings. Product Quantity: 1 Piece Product color: gray