Features: Working Principle: Snoring sound is automatically and accurately detected by high precision sensors, and hypoglossal nerve and mandibular muscles are massaged through vibration pulses of different frequencies to promote muscle tightening and regulate breathing rhythm. Wide Uses: This anti Snoring device can be widely used high speed rail, airplanes, offices, long distance rides ,ect. You can also send friends as a present. Ergonomic Design: The for smart anti snore device has ergonomically designed for a high level of comfort, you wear and use the product correctly according to our guidelines. Persistent Use: You wear this for smart anti snoring device for 23 weeks, the breathing will be smooth when sleeping, and the number of snoring will be greatly reduced. It is good for your sleeping. Main Purpose: The snoring can be accurately recognized by this device, devide will help to gradually reduce snoring symptoms and improve your sleep quality. Specifications: Rated Voltage: 3.7V Battery Capacity: 120mah Material: ABS+PC Working Time: About 30 Hours Pulse Frequency: 10Hz-1500Hz Rated Current: 20mA Product Color: Black Note: Please allow 1-2cm errors due to manual measurement,pls make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1x Anti Snore Device 1xusb Data Cable 2x Ear Straps 2x Silicone Ear Cord Buckles 1x Manual