1.Patented unique 3D massage machine; 2.Zero gravity function, Actuator adjustment on seat, backrest/leg-rest;                 3.Whole armrest air pressure massage;  4.The whole armrest can be installed easily; 5.Extendable/retractable leg-rest and footrest up/down motion;                                  6.Body height can be detected to adjust back travel length;                                            7.Built-in Mp3;                                8.Removable power box for easy checking and maintenance.