How the product works:Wear the product during rest, the product will automatically and accurately detect snoring through high-precision sensors, massage the hypoglossal and mandibular muscles through vibration pulses of different frequencies, promote muscle tightening, adjust breathing rhythm, and make breathing easier. Significant anti-snoring effect: 1. Wear it for 2-3 weeks, the breathing will be smooth when sleeping, and the frequency of snoring will be reduced a lot. 2. Continue to wear it for about 30 days, the breathing gradually becomes stable, and the family can sleep at ease. 3. Wear it for about 2 months, you can leave without relying on the product. Tips: The product may be updated constantly ,Due To Different Batches, The Actual Product May Have Slight Differences Or Color Differences, Which Does Not Affect Use Note: Due to long time shipping, the item may damage in trans it Colour:Black Material:ABS Package Contents: 1 x Anti Snoring Device Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.