It can also be used with Microsoft Pen Protocol (MPP), which is the type of touch protocol that Microsoft uses with its devices (Dell uses it for some of its own as well). The stylus is also Dell's most versatile you can use it with every Dell AES touchscreen device there is. The Premium Active Pen comes with three programmable buttons, which is an upgrade from the rest of Dell's Active Pens that only offer two. Also, the pen can be tilted, which further gives people flexibility with how they use it and doesn't force them to use the pen in an upright position all the time. This means that artists can use it to perform nuanced strokes, and it will allow them to add tiny details that simply aren't possible with less advanced digital pens. The main thing that makes the Premium Active Pen such an amazing stylus is the fact that it supports 4,096 different levels of pressure sensitivity, which is an outstanding result.