How the product works: Wear the product during rest, the product will automatically and accurately detect snoring through high-precision sensors, massage the hypoglossal nerve 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. Comment: 1. Manual measurement tolerance is 2-5g. Please don't mind your substitutions. 2. Due to the difference between different monitors, the image may not reflect the actual color of the item. thank you very much! Describe: Colour: Black Material: ABS+PC Package Included: 1*Intelligent snoring device 1 *USB data cable