DO NOT BUY better product by another seller in my review
I ordered three of these for xmas.  One for myself due to dry eyes and the other for my daughters.  I used mine and the mask heated up nicely.  The heating unit turned off in about 10 minutes.  I tried to turn the mask on (instructions in Chinese) and the 'on' light didn't turn on and neither did the mask. I tried to turn the mask on the next day and it DIDN'T.  I sent a message to the seller and never heard any response for a refund/replacement.  Meanwhile I purchased<br />EYEHELP Heated Eye Mask with USB Temperature Control and Timing Eyeshade Lavender Flavor Scented Silk Night Sleeping Hot Steam Eye Cover (Gray)<br />Sold by: XSHINEE<br />$24.99<br />And it works like a champ better made and easy instructions.  Steer clear of this seller.
Rating: 1 stars