Whether it's outside work, class breaks,after get off work or on the go,you can enjoy sleep at any time and protect your eyes. No-removal wash (hand wash only),repeated use, cost-effective. Timely temperature adjustment, temperature control at any time,three-speed temperature adjustment, temperature control at any time,temperature control automatically shuts off after 45 minutes. Quick heating, care at any time,suitable for all kinds of people, full shading,long-lasting heat, even heat. Easy and portable with detachable cable,adsorption port, easy to disassemble. Cashmere fabric, soft touch for comfortable sleep,graphene heating film,far infrared. Comfortable hot compress,let you experience professional eye spa. - Graphene electric heating eyemask Regulate dry eyes 3-speed temperature adjustment/washable Ergonomic Design Non-spatial sponge is soft and breathable Adjustable headband for a variety of people perfect nose contour - Optimal Heating Zones: Cashmere fabric, soft touch, flat design, and expanded size ensure this heated eye mask rests right on your eyes to keep soothing heat last for relieving tiredness, dry eyes and tensions. - USB-Powered: Compatible with most USB outlets for universal power supply, this warm eye compress can be powered by laptops, battery packs, and car chargers. Please note that USB adapter is not included in the package. - Effortless Maintenance:Thanks to the integrated design, this soft sleep mask can go through wash to clean up(only hand wash) the undesired buildup after using for a period. We kindly advise you to wash your eye mask on a regular basis for personal hygiene. Take it with you for free. If you have any problem about the product, please feel free talk to us. Make sure it connected the power supply before using, otherwise it will not heat up. - Instructions: 1. Attach the cable to the port of the eyecup 2. Connect the USB plug on the power supply 3. Press the button on the cable to set the heating power, set the temperature. 4. Enjoy relaxing time