Lenovo Integrated Pen for 300e/500e Yoga Chromebook Gen 4 is an ideal input solution giving users 4096 levels of pressure for precise content creation. This pen is unique to Lenovo 300e/500e Yoga Chromebook Gen 4 and it can be stored in the Chromebook pen slot made specifically for it. While being stored, the pen will be recharged and allow users to enjoy an up to 45 minutes (active use) of battery life of a single full charge.