This bed has four jade rollers inside ,drive from tail to neck which can reach the temperature at 70 'C .it is very good to help eliminate the back ache . It has the 5 jade ball hand held massager for good heating therapy . you can enjoy the heat therapy from the hand massage for the place you want ,it also can reach at 70 'C .It has auto and manual models, in the auto situation ,it can have about 40 minutes massage . at the manual situation ,you can choose the massage program by yourself. It[...]