How Does The EMS ChestDefy Microcurrent Massager Works? Using EMS ChestDefy Reduction Microcurrent Massager replicates natural muscle contraction by sending impulses from the pads to the targeted muscle group causing then to improve in just weeks of using. This EMS ChestDefy Reduction Microcurrent Massager will stimulate 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 send signal to muscles, and promote 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 burn through stored glycogen for energy. EMS ChestDefy Reduction Microcurrent Massager uses a pulse technology that is scientifically proven to tighten & restore muscle tone that greatly helps to achieve a slimmer figure. OUR GUARANTEE We are confident that we offer some of the best products on the market. Therefore, we provide a 30-day guarantee. We will make every effort to ensure that you are completely satisfied with your purchase. Online shopping can seem daunting. We want you to know that there is absolutely zero risk of purchasing something. We won't make it difficult if you don't love it. We offer email and ticket support 24 hours a day, 7 days a week. If you require assistance, please contact us. Please contact customer service if you have any problems with your purchase.