It's a hot eye mask. I'm hoping to sell it, so I'm open to price negotiations. Please offer your desired price. I no longer need it because the previous one, which I thought I had thrown away after using it twice, has turned up. The third photo shows everything included (main unit, USB cable, case). The case's slider has been faulty since it arrived. You have to be very gentle when opening and closing it, or the handle easily comes off. Thank you for your consideration.