The Cozzia 16028 Zero Gravity chair elevates the knees to the level of the heart, and brings the spine parallel to the ground. By eliminating all vertical pressure on the vertebrae, the connective tissues surrounding your spine are able to relax making massage far more effective. The 16028 automatically reclines and the back and footrest can be adjusted independently. It scans your body to determine your height and adjusts the massage area to fit. Massage features include Shiatsu, kneading, clapping, tapping, rolling, and vibration. There are five pre-programmed massages with adjustable speed, strength and intensity. Partial massage options are also available. The seat has a built-in vibration massage and heat therapy in the lumbar area. The invigorating air pressure system features 22 airbags in the back, seat, calves, feet & neck pillow to massage the entire body. Massages can be customized and the remote will even turn off the chair when the massage is complete.