1massage accord to the music rhythm 2.DVD player installed,with loudspeaker and hi-fi earphone 3.four massage balls inside the backrest, kneading taping and pressing from neck to waist 4.five automatic programs,measure the figure automatically with infrared ray 5.air and vibration massage in thigh position 6.air and vibration massage in calf position 7.vibrating massage in foot position 8.LCD scrren remote control 9..the length of the calfrest is adjustable