The SleepPro EMS Anti-Snoring Device works by automatically detecting snoring through high-precision sensors and passing through various frequencies. Vibration pulses are then sent through the device, which massage the hypoglossal nerve and jaw to tighten muscles and adjust breathing rhythms. SleepPro EMS Anti-Snoring Device is a form of physical therapy that uses radiofrequency energy with the micro impulse to shrink excess tissue in the soft palate and tongue. Keep the airways open and enhances airflow. 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.