1.music massage, this chair could supply very comfortable massage action in accordance with rhythm. 2.U disk and hi-fi earphone installed, you could hear MP3 music when you enjoy the massage. 3four massage balls inside the backrest, kneading taping and pressing from neck to waist 4. Air and vibration massage in thigh, calf, foot and arm position 5. Measure the figure automatically with infrared ray and supply most comfortable massage 6. LCD scrren remote control 7. Five automatic programs 8. The length of the calfrest is adjustable