Product Colour: Black Rated voltage: 3.7V Gear: 6 gears Material: ABS&304 stainless steel&elastic band How the product works 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 smoother. Significant anti-snoring effect: 1. Wear it for 2~3 weeks, the breathing will be smooth when you are asleep, and the snoring frequency will be reduced a lot 2. Continue to wear it for about 30 days, the breathing gradually becomes stable, and the family can sleep comfortably 3. Wear it for about 2 months, you can get rid of the product, there is no dependence Packing Included: 1 x Anti Snoring Device Note: 1. Due to the different monitor and lighting effect, the actual color of the item may be slightly different from the color shown on the pictures. 2. Please allow 1-3cm error due to manual measurement. (1 inch = 2.54 cm) Thanks for your support :)