Works with Windows 8, 10 or Chromebook to turn a regular screen into a touch screen with a USB connected device. It does not require skin contact either. You can use gloves or other devices. "AirBar, created by Neonode, is a small bar that magnetically attaches to a bottom of a laptop screen, plugs into a USB port, and then emits an invisible beam of light to track movement and convert the standard screen into a touchscreen. Unlike traditional touch screens though, Airbar works with fingers, brushes, gloves, and even chopsticks. When you’re done and need to pack everything up, you just need to unplug the device and slide it off your laptop." They come in different sizes. The 15.6 inch looks to be the longest and presales show it listed for $69.