After wearing for 10 to 12 minutes, when looking at a stationary object (such as a smartphone or a book), the glasses will synchronize the movement of the brain with the inner ear. Then, you can take off your glasses and enjoy your next trip.The fluid in the frame simulates the angle and movement of the eye level, so that the perceived movement of the eye matches the movement perceived by the inner ear. If there is no signal conflict, then you will naturally not get sick.Feature:* 100% brand new and high quality.*There is no lens design, which can be used to prevent motion sickness on both sides.*Relieve vomiting, vomiting and dizziness within 10 minutes.*Foldable, portable, non-deformation, efficient motion sickness.*The fluid in the frame simulates the angle and movement of the eye level, so that the movement perceived by the eye matches the movement perceived by the inner ear.*If you stare at a stationary object such as a smartphone or a book after wearing it for 10 minutes, the glasses will keep the brain in sync with the movement sensed by the inner ear. Of course no motion sickness.*Suitable for adults and children.Specification:Color: as shownNet weight: 70 gramsPackage:1 cup of anti-motion sickness medicine