it is micro controlLed massage sofa,it can help relieve pains in back because of long time work.the different massage models can help improve the blood circulation and lead a sound sleep.the different human organs are all have a good massage ,such as buttocks,thigh,calf and feet.we use 26 air bags to improve the massage function.when the backrest reclined ,the footrest up,it is a good massage bed. 1.four humanized ,quiet designed rollers in the back drive up and down ,make the kneading ,finger pressing .knocking functions both indival and together . 2.4 air bags in the seat,12 air bags in the calf and 10 in feet ,you can enjoy a good massage in your lower body. 3.both backrest and footrest are auto reclinded by control plate. 4.the massage strenth and width are both adjustable. 5.warranty period :one year packing:115x80x76cm 42pcs/20GP