How TENSPulse Pure Sleep Anti Snoring Chin Device Works? The product automatically and accurately detects snoring through high-precision sensors, and massages the hypoglossal nerve and jaw muscle group through different frequency vibration pulses to promote muscle tightening, adjust breathing rhythm, and make breathing easier. TENSPulse Pure Sleep Anti Snoring Chin Device helps the throat muscles relax and clear the block airway during sleep. Alleviating congestion or restricted airways helps stop snoring and improves sleep quality. 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.