Feature:Please note: other accessories are not included.100% new qualityColour: BlackMaterial: ABS+PCRated current: 20mARated voltage: 3.7VBattery capacity: 120mAhWorking time: about 30 hoursThe working principle of the product:Wear the product while resting, the product will automatically and accurately detect the snoring sound through high-precision sensors, and massage the hypoglossal nerve and mandibular muscles through vibration pulses of different frequencies to promote muscle tightening, adjust the breathing rhythm, and make breathing smootherSignificant anti-snoring effect1. Wear it for 2-3 weeks and breathe smoothly while sleeping, and the frequency of snoring will be reduced a lot2. Continue to wear for about 30 days, breathing gradually stabilizes, family members sleep well and worry-free3. Wearing for about 2 months, you can leave the product without dependenceRemark:1. Manual measurement tolerance is 2-5g. Please don't mind your replacement.2. Due to the difference between different monitors, the image may not reflect the actual color of the item. thank you very much!3. SKU color is the outer packaging colorPackage Included:1 *Smart anti-snoring device1 *USB data cable2 *Ear lanyard2 *Silicone ear rope buckle1 *Instructions