Lenovo Integrated Pen for X13 Yoga Gen 4 is an ideal input solution giving users 4096 levels of pressure for precise content creation. This pen is unique to Lenovo X13 Yoga Gen 4 and it can be stored in the pen slot made specifically for it. While being stored, the pen will be recharged and allow users to enjoy an up to 69 minutes (active use) of battery life of a single full charge.