1, Heat therapy massaging chair 2, Zero gravity 3, Music playing ... still have option keys for leg, buttock and arm separate massage.7. For seat cushion, calf rest ... adjusted in three steps.8. For arm, there is equipped airbag arm massager, totally 4 airbags inside the ... reclined separately.16. Restore automatically while turn off the chair.17. Equipped vacuum fluorescent display, MP3 player, earphone ...