Перевод. on/hi-turns the unit on and increases the intensity of impulses. each pressing of the botton results to one-step increase of intensity level, which consists of total of 10 levels.the higher the intensity,the higher the contraction.push this botton ten times to reach maximum intensity and contraction. off/low-turns the unit off and decreases the intensity of impulses. each pressing of the botton results to a one-step decrease of intensity level. mode-this button is used to select one of the six exercise preprogrammed exercise routines. the setting is indicated by the color and location of the two led light on the unit. the ab gymnic has the following 6 programs: (see control chart next page)