1.Four-wheel driven massage mechanism which can move upward and downward. 2.Automatically scanning the massage point of the upper body and shoulder, and can be adjustable. 3.Programmed with five kinds of emulational massage functions of Shiatsu, kneading, flapping, knocking and synchronous kneading & flapping. 4.Automatic massage for the upper body. (Three optional areas of the upper body, the shoulder and neck, the back and waist) 5.Offers manual massage for the upper body with three options of the overall, fixed and partial area with five levels of speed respectively. Under the massage modes of flapping, shiatsu and knocking, the width between the two massage hands can be adjusted in three levels of wide, middle and narrow. 6.Two ways of air pressure massage function, one airbag on both side of the seat cushion, one in the center; when the center airbag is working, the center vibration motor works too. 7.Two ways of vibration massage function,one on both side of the seat cushion, two strengths available. 8.Seven ways of air pressure massage function, two strengths available. 9.Armrest air pressure massage. 10.Mp3 music function. 11.Handed jade heating function. 12.Massage state memory function. 13.Backrest heating function. 14.Lying angle adjustment function;Calf rest reclining and declining function;Backrest reclining and declining function. 15.Automatically sitting up function of the chair and automatically recovering function of the backrest mechanism when turning off the machine.