Lenovo Lenovo 4X80H34887 ThinkPad Active Capacitive Pen, Stylus, Black

The Active Pen from Lenovo is made for select Lenovo notebooks and lets you digitize your drawings and notes. It features pin-point accuracy, palm rejection technology, and 2048 levels of pressure sensitivity to imitate a pen on paper experience. It's powered by a single AAAA battery and also has two built-in buttons on its side for quick access to additional functions. For your convenience, a USB pen holder and three replacement tips are included.