Use the Weye USB heated eye mask for instant relief thanks to its comfortable, consistent temperature, providing relief from dry eyes, fatigue, migraines and puffiness.The Weye USB heated eye mask is ideal for treating dry eye symptoms related to meibomian gland dysfunction (MGD) and with a graphite core has better temperate stability. No microwave required.Place the mask over the bridge of your nose and adjust the elasticated head-band. The suggested use time is 15-30 minutes daily. This will help improve circulation around the eyes thanks to a comfortable temperature, providing relief from dry eyes, fatigue, migraines, puffiness and additional discomfort.How to use the USB controller: To turn the mask on, lightly press the left button To adjust the temperate, press the left button and you can cycle through the options To adjust the time, press the right button and you can cycle through the options To turn the mask off, press and hold the left button To clean the mask, open the zipper and remove the graphite heating core. Hand-wash the cotton mask with water below 40ºC.The product can be connected directly to a computer, or any suitable USB adaptor.Please note: for those switching from a microwaveable compress you may feel that this mask is not as hot when you first put it on. This is because it heats to a more regular and consistent temperature throughout the period of use. Microwaveable compresses/masks loose heat quickly so typically start hotter because they cool over time.