Review title is I like this heated eye mask [SEP] I like this heated eye mask, for the most part, I especially like that it exists in the first place! I was searching Amazon up and down for a heated eye mask that can be worn like a sleeping eye mask to relax my eye muscles after sitting at a computer all day when I finally came across this one. I don't care for the color or the kitty design, but the purple material is velvety soft which I do like.<br /><br />The mask easily covers my head, though I do have a small head, and the strap fits around the back of my head pretty well. I do choose to wear my hair up at night when I use this heating mask otherwise the strap slides up my straight fine hair slowly if I move my head from side to side. And I somehow never wake up with it on, though I'm thinking that has much more to do with me removing it during the middle of the night vs a product error.<br /><br />The power cord is composed of two pieces, the first has one end with a USB and the other as a round female piece. Connected to the mask on the right side is the other piece of the cord. This piece has a male round piece and connects perfectly to the female piece. I imagine this design is intended to allow the cord connected to the mask to easily be pulled out if the person moves during sleep.<br /><br />I plug the cord right into my USB-hub with my phone charger and it works perfectly well.<br /><br />The controls on this are odd, and you are provided zero instructions. There are two buttons I believe one is a (-) that is indented and the other is a (+) that is raised if my memory serves me right. You have to keep one side pressed down until the unit turns on, then I press the indented button because the numbers go up to 60 on this side. The numbers displaced are bizarre and I have no idea what unit of measurement they are - though degrees Celcius makes the most sense.<br /><br />The one thing I wish this product had was sewn in contours for the nose and eye sockets so it was able to lay more flush with your eyes. This would allow your eyes to feel a more direct heat. Usually, to counterbalance this I place one of my arms over the heating mask to apply weight and increase the intensity of the heat.