The HP Executive Tablet Pen is designed to work on the HP ElitePad 900 and the EliteBook Revolve as an alternative to touch input, specifically with Windows 8 applications in desktop mode. The pen can be used for selecting objects, drawing, taking notes, and signing documents. Write messages and notes in your own handwriting directly on your HP tablet PC screen. Then save it - or convert it to typed text to use in other applications.Since this pen is designed to work more like a finger rather than a mouse, there are some differences in how it is used. For example, the pen does not support hover capability or in-range detection, meaning that the presence of the pen is not detected unless it actually physically touches the screen. At this time, the pen cannot be used to activate cascading menus or tooltips by moving the pen over the screen. As a result, there are some limitations to using the HP Executive Tablet Pen with some Windows 8 modern apps.