Use different depths of therapeutic cartridges to focus the accurate energy on the vaginal collagen layer and SMAS layer, which can produce a thermal effect of 65 ° ~ 70 ° to promotes the reconstruction of collagen fibers and tendons in the deep vaginal mucosa and tight the contraction of SMAS layer, changing the vaginal dryness and relaxation, promoting vaginal mucus secretion during sex, and making sure that the vagina is moist and tender.