How Does The GFOUK EMS ChestDefy Microcurrent Massager Works? UsingGFOUK EMS ChestDefy Microcurrent Massagerreplicates natural muscle contraction by sending impulsesfrom the padsto the targeted muscle group causing them to improve in just weeks of use. This ChestDefy EMS Microcurrent Massagerwillstimulate your body skin by low frequency to tighten and strengthen your muscles, giving you a satisfactory body figure.EMS (Electrical Muscle Stimulation) through current stimulation, directly sends the signal to muscles, and promotes muscle movement. All you have to do is to fit the abdominal toner to your body and let it exercise your muscles. Your muscle first burns through stored glycogen for energy.EMS ChestDefy Reduction Microcurrent Massageruses a pulse technologythat is scientifically proven totighten & restore muscle tone that greatly helps to achieve a slimmer figure.