DescriptionThis eye masks ismade of good materials, durable for long lasting use.It's designed to have 3-class heat temperature settings and you can adjust it according to your needs. Heated by USB cable, it is convenient to charge via power bank, computer and etc.Features-Color: Black -Material: Lint, Sponge -Size: 22.00X10.00X1.00cm/ 8.65X3.93X0.39in -Voltage: 5V-Power: 5w-Note:Three-speed temperature control temperature control adjustment, intelligent timing (30, 45 or 60 minutes)-The heating eye mask, 3 levels of temperature adjustment, suitable for different people. -Can improve blood circulation around eyes, relieve eye fatigue, remove dark circles. -Charged by USB cable, it is convenient to charge via power bank, computer and etc. -They can help you release your stress and bring you good sleep, share with your friends and family as a wonderful gift. -Made of good and wear-resist materials, safe and comfortable, durable for long lasting use.