The Westinghouse WES41-850-3D massage chair in black is designed to offer a total massage experience covering many parts of your body. The Zero Gravity feature provides a minimized spinal stress position by elevating the legs above the heart and positioning the spine on a horizontal plane. Zero Gravity is recognized as a reduced pressure position simulating a floating sensation.Precise body scanning technology with 10 auto pre-programmed modes and 6 kinds of massage techniques adds to a total massage. Voice command, HI-FI bluetooth speaker and a tablet controller completes the relaxing experience.