... auxiliary machine of diagnosing and consulting,what’s more,it helps the cure of pasting and pressing ear acupuncture point ... cervical spondylosis, periarthritis of shoulder, allergic rhinitis, canker sore, lumbago and skelalgia, pseudomyopia, incretion disorder, obesity, chloasma, acne, irregular menstruation ... .2ms~1msVolume215X35X23mmWeight75g(bettery,detector excluded) CLRH-A Health Care Products