This item is a USB eye mask. Made from super smooth and comfortable, good for skin. Completely block out all disturbing light, to help you fall asleep easier and engage in deep. For helping you to relax and fall asleep for a truly sensational night's sleep and wake up refreshed. It is a product worth buying. Features -Color:Beige -Material:Flannel, PP -Size:20.50X10.00X0.80cm/8.06X3.93X0.31in -Voltage: 5V -Made of lightweight and supple design, suitable for most women, men, kids. -It's a for you to go into deep sleep , take a rest for eyes at office, enjoy yourself on travel and have an in the hotel. -Different levels of temperature adjustment, self-control of temperature, choose your own temperature, deeply relieve muscle fatigue. -Can improve the circulation around the eyes, reduce eye fatigue, dark circles, and prevent vision loss. -Special design and it is in fine craftsmanship. It is the best replacement for your old, broken one. Package list: 1 x Eye Mask 1 x USB Cable