Combined the technology and designed idea, this 3D massage chair develops the remote controller into infra-red controller ... has different work nature and level of exercise. Infra-Red 3D massage Chair inherits its predecessor\'s S back and S track ... posture correction. 9) Auto, semi-auto, manual operation. 10) Massage action includes 3D massage, tapping, kneading, rolling, tap-kneading, S-rolling and S ...