Controller of touch screen The IMD techniques is applied for the controller shell of touch screen; The user interface (UI) is single screen with multi-level menu; It is easy for user to freely switch between Chinese and English; The user can touch the screen to set, adjust or control each massage function; The controller of touch screen has multimedia playing function, which can play MP3 audio files and MP4 or MPEG video files. Leg massage unit; Total 22 airbags are distributed scientifically at the legrest and footrest; Big and small pillows Arm massage unit has 8 airbags, which can parallel slide backward and forward; 6-grade massage strength is adjustable; 3D two-roller massage mechanism; 6-grade massage strength is adjustable; 3D intelligent sensing function; 4 kinds of auto massage procedures; 6-grade speed for back massage unit is adjustable; 3-grade massage width is adjustable; Reclining angle of backrest is about 116-168 degrees; Hot compress for waist care; Linkage functions of armrest and backrest; The leg rest can stretch out automatically to fit the length of human legs; With function of sensors.