1.2 kneading heads for neck massage 2.Neck position could be adjusted automatically by controller, 7cm space adjustable 3.4 rollers with infrared heating to kneading and shiatsu the whole back 4.Moving up and down rolling on the whole back 5.3 levels of temperature adjustment: low, middle, high temperature 6.Spot shiatsu makes you massage any position for your best comfort 7.Shiatsu and rolling function working separately available 8.2 high frequency vibrators on bottom with various vibration modes 9.Zip design for seat cushion which can be seperated from back cushion 10.15 minutes auto shut off, 11.Power by both adapter and car plug 12.Micro-computer handhold controller 13.Health care product. Color box or customized packing