This is the massager that provides varying combinations of compression, heat, and vibration for the lower back. Slipping around the waist with an adjustable hook-and-loop fastener, the massager adapts to the body's natural contours, allowing you to place it as high or as low as you prefer. The massager's integrated air pump inflates an internal bladder that compresses against the back; three varying intervals of inflation and deflation, complemented by heat and three levels of vibration relax tense muscles in less than a minute. A panel on the belt's front allows you to switch between compression, heat, and vibration settings easily and all three methods may be employed simultaneously. Powered by the included AC adapter. Fits waists up to 46" in diameter. (1 1/4 lbs.)