This is Leap Motion. It captures hand movements to control a computer. I used it a few times a while ago and then stored it. It worked fine at that time. I tried to check it before listing it, but I had to dispose of the computer where I had installed the app, so I couldn't confirm its operation. On a computer without the app installed, I confirmed that the LED on the main unit lights up green. I don't know much about how to use it, so please search online. This is a used item, so the outer box has some discoloration and stains that can't be removed. There is no warranty as it has been several years. - Included items: USB cable x 2, box, instruction manual Thank you for looking.