The only heating pad that relaxes the Neck, Shoulders, Upper Back & Chest.Other heating pads relax the neck muscles but not the muscles that go to the neck, therefore you still have neck tension. Dr. Bob"s Neck Wrap Heating Pad applies a gentle heat to the neck and the muscles going to the neck for a more complete benefit.If the Chest is tight it pulls the shoulders forward, which effects your posture and puts tension on the muscles. Dr. Bob"s Neck Wrap Heating Pad relaxes the chest muscles which provides benefit to the neck and upper back.Washable coverAutomatic shut-off (120 minute)Easy to use controls