... :1) The TENS massager of human boby.2) The healthcare management device expert custom-made for you.3) The TENS massager ... button, voice instruction, operate facilitily5) Ultra large screen display health management information, clear to use6) 99 levels for energy adjusting, ... lumbar, elbow joint and knee joint6 Six muscle groups energy management mode: back, psoas, hip, arm, thigh and shank Parameters ...