Anti Snoring Devices, Anti Snoring Sleep Aid for Blocked Nostrils Snore Reduction FEATURES: Made of extremely soft food grade silicone material, it is very soft and suitable for nasal passages of different sizes. The working principle of the anti-snoring device is ergonomic, and the double vortex air supply design expands the airway, and the air flow is smooth. The mini USB charging design will not add extra pressure to the nose, and it does not take up space and is convenient to carry and charge. HOW TO USE: 1. Simply Place the Device Under Your Jaw. 2. Adjust the Fit According to Your Needs. 3. Press the Power Button for Three Seconds to Turn on the Device. The Device Starts to Work. SPECIFICATIONS: Material: ABS+304 Stainless Steel Color: Blue USB Battery Data: 1800mah Operating Hours: About 7 Nights of Use on a Single Charge PACKAGE INCLUDED: 1 PCS Sleep Anti Snoring Chin Device 1 PCS USB Cable 1 PCS User Manual NOTES: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.