Surface pen lets you draw and write, quickly annotate slides, or take notes with precision. It recognizes 1,024 levels of pressure, combining the functionality of a stylus and a mouse. Its magnetic attachment allows it to be stored on the side of your device, freeing up space for a USB port. Unlike older Surface devices, which used Wacom technology for the pen, Surface Pro devices use Microsoft Pen Protocol (MPP), allowing the Surface Pen to be compatible with most third-party pens.
In the case of OneNote, the poster child application for Surface Pen support, it's trivial to scribble diagrams and notes directly into an existing note or create a new note that incorporates typed text, images, scribbles, or handwriting. Other apps, such as Adobe InDesign and Sketch, provide similar capabilities.
With Surface Pen, you can circle things or put in arrows to highlight important points in a document or slide presentation. And you can write on top of PDF documents, such as manuals, and automatically have them saved in the browser's native handler, Edge.
To charge Surface Pen, you must plug the small end of the cable into the slot at the bottom of the pen and the other end into a USB port on your Surface device. The light at the tip of the pen will start to flash when it's charging. When the light stops flashing, your pen is fully charged. You can also connect the pen to a wireless charger, which is sold separately.
