About this item Mountrax heated eye mask (EM-004) has a 3D contoured cup eye mask design, and tight design fits around the nose for a completely dark sleeping environment. Low rebound memory foam provides a wider and deeper space around the eyes. Silky touch, soft and breathable, very comfortable to wear. Suitable for women and men. Comes with a fully adjustable buckle strap to fit all head circumferences, easy to adjust and not catch hair. Not only does it work well as a eye mask for sleep, also a heated eye mask, which can provide a warm compress function.Warm compresses function can better relieve puffy eyes, dry eyes, etc. Also can regulate the metabolism of the eyes, more effectively improve symptoms such as dry eyes, and reduce dark circles. Warm compress function needs to be connected to the USB cable, press the switch, the blue light is on to indicate that it is on. The temperature will start from High mode and it will take 3 minutes to feel the heat. You can customize the warm compress temperature, click the switch in turn to choose from 3 temperatures (High: 131℉, Mid: 113℉, Low: 104℉). Automatically shuts off after 30 minutes of use, preventing heating all night. This heated eye mask can not only be used by yourself, and can also be given to your loved one as a gift for Christmas, Thanksgiving, Mother's Day, Father's Day, anniversaries or birthdays. Share a healthy life with friends, loved ones, reduce eye strain and improve sleep. Thank you for liking our products. We will do our best to provide the best experience and service to our customers. If you have any questions about the product or order, you are welcome to contact our customer service at any time. We will solve any problem for you.