Smart Anti Snoring DevicesMassage the jaw muscles through pulse technology, adjust the breathing frequency, help gradually reduce snoring symptoms and improve sleep quality Portable & Easy to UseMini size with light weight, which is convenient to carry as well. Reusable and not easy to fall off. Suitable for any sleeping posture. High QualityMade of high quality ABS material, which is sturdy and durable. Ergonomic design and comfortable to wear Ideal GiftIt can be used in high-speed trains, airplanes, offices etc. This is also an ideal gift for your families and friends. Warm Tips Pregnancy or childbirth women are prohibited to use. Children under the age of 16 are prohibited from using. It is prohibited to use the product in the eyes and other parts.