Lenovo Active Pen 2 is Bluetooth enabled Active Capacity Pen. It can support 4,096 levels of pressure sensitivity to provide a natural pen and paper experience when you sketch and jot down notes. The Active Pen 2 also features one top button and two built-in side buttons for self configuration, a USB pen holder for storage and three replacement pen tips for longer use. Bluetooth Connectivity Paper Like Writing 2000 Hours Battery Life Metallic & Diamond Cutting Anti-Accident Clicks Configurable Button Up to 4096 levels of pressure sensitivity.