DescriptionThis is an eye mask, made of high-quality materials, safe and healthy, and safe to use. Helps relieve eye fatigue and relax the body and mind. It is and light, and will not bring any burden to your eyes.Features-Material: Cotton.-Charging time: 2h.-Battery capacity: 200mA.-Standby time: 48h.- It provides you with the most comfortable wearing experience.- It can also be given as a gift to relatives and friends.- This eye mask is suitable for sleep, giving you a quiet and charming deep sleep environment.- This elastic music eye mask fits any head shape.- Cotton material, comfortable, breathable and not stuffy.