Designed for Surface Pro 3 Connects to Surface via Bluetooth 4.0 Battery powered It comes with all original paperwork inside the box. It’s basically new. Only tested it once the day it was purchased. Palm Block technology ignores the pressure from your hand when it senses you’re using Pen With over 250 levels of pressure sensitivity, Surface Pen lets you draw and paint with artistic precision. Silver blue color metal stylus pen in box. Slim, modern design. Compatible with touchscreens. Purchased at Best Buy with the Microsoft laptop surface, but my son’s laptop was stolen before school started, so unfortunately this is no longer needed. He only tested it once on the day we got him the computer.