How Does the ZEN+ EMS Compact Body Massager Work? This is ZEN+ EMS Compact Body Massager that will help to relieve your neck pain and promote blood circulation so as to achieve deep enough relaxation of your neck muscle tension and fatigue, especially for people who often sit for long hours to work or study. 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.