Electric Massage Chair 1. 2 neck massage kneading rollers. 2. Back and Waist 12 kneading rollers for large-scale massage. 3. Seat vibration. 4. Arm air pressure massage. 5. Shoulder air pressure massage. 6. Head air pressure massage. 7. Airbags on calves, ankles, and feet, calf massage height adjustable. 8. The backrest can be regulated electrically to 180 degrees. 9. E-timer, built-in microcomputer chip with time setting function. 20 minutes auto timer. 10. With music function. 11. Massage position auto-reset when power off.