... . 2 optional massage speed, 2.4 cm/s, 1.7 cm/s.6. Earphone. FAR INFRARED MASSAGE TABLE TECHNICAL ... “V” shape massage roller goes according to human body’s back, suits different people, different shape. Wide jade ... lines. Cannot massage neck and waist."S" rail: can not fit everybody’s back shape, after long use, can ... bulb is inside of the roller, so roller’s rigidity must be very high.Real jade is too ...