This product is equipped with a set of four-wheel driven massage mechanism which can move upward and downward with muted voice design. 1.Automatically check the upper body massage points, shoulder position check and adjustment 2.Imitated those of real massager methods, such as finger press, knead, flap, knock, knead and flap at the same time, and vibration. 3.Special automatic massage functions: awaken, relax, decompress, body-build and comfort. 4.Designed with auto massage functions for the upper body (overall, partial, fixed points, shoulder, back and waist six modes options; when it is in the state of partial and fixed points modes, the massage points could be adjusted by pressing the up and down keys. ) 5.Designed with manual massage functions for the upper body (fixed points, partial, overall, shoulder, back and waist six position options with five massage methods and five speed options, under the state of tapping, shiatsu and knocking, the width of the massage mechanism could be adjusted in three levels of wide, medium and narrow; under the state of partial and fixed points in the back, the massage mechanism could be moved upward and downward to reach different massage points) 6.Air pressure massage functions of the lower body (33 air bags are equipped inside), there are three modes and two intensity options. 7.Arm air pressure massage function (4 air bags are equipped inside). 8.Designed with vibration massage functions (there are three strength options for each of the back, buttocks and feet) 9.Music function: play, stop, previous one, next one and volume adjustment function on the controller. 10. Massaging along with the music function: the speed of the back manipulator and shaking intensity are fluctuated by the high frequency voice, while the buttocks by the intermediate frequency voice. Under the state of synchronous much massage, the massage strength can be adjusted on the music control wire. 11.Equipped with a jade heater in which 5 Helium-Leon bulbs use 5 jades as infrared emitter, the temp can be adjusted between 40 Degree Centigrade~70 Degree Centigrade 12.Foot rest and backrest ascending and descending function (include ascending and descending, sitting and lying.) 13.Automatically restoration function when pressing t