xxxxx with four groups of massage heads and one group kneading heads with muted voice design. 2. Designed with Pre-Programmed Massages and manual massage functions, Equipped with four groups of massage heads and one group kneading heads which can offer kneading and shiatsu massage in full or partial body ;offer squeezing massage in shoulder and neck, two- level intensities adjustable. 3. Designed with special massage function:relax, pressur-relieving, body-built, tension-relieving and knot-boosting. 4. Designed with seat air pressure massage function combined with vibration function, two intensities options. 5. Designed with leg and calves air massage function with 22 air bags and 2 intensities options. 6. With a fully automatic reclining system in back and calves, the backrest can be reclined up between 100- 165 degrees. 7. 15-minute auto timer function, LED displaying the rest massage time. 8. The entire machine is designed conforming to ergonomics, “S” designed back, massaging more scientifically. 9. With a foldable backrest and castors at the back of the chair, moving and storing the machine is a breeze. 10.Automatically sitting up function of the chair and the automatically recovering function of the backrest mechanism when turning off the machine.