Chair Function: 1.The mechanism hand move up&down,equiped with 6 function:Press,kneading,shiatsu,knocking & flapping,percussion. 2.Choose the anyone of functions to conbine. 3.the seat and the backrest can adjust by the controller,the armrest can lift 90 degrees,arms with tray. 4.The chair with MP3 function. 5.airbags on the seat. Function of the tub: 1.Acrylic basin,pipeless in the basin 2.At the bottom it has sole surfing.and the lamp have 7 seven color,and change one by one. 3.2 buttoms of the hot&cold water. 4.the back of the tub has a water inlet&out pipe.