Condition: Like new (only tested for functionality) Operation: Confirmed. Both pressure sensitivity and button operation are good. Accessories: Includes one new AAA (AAAA) battery installed. ■ Features Genuine Lenovo product, ensuring high compatibility and stability with the ThinkPad series. Supports 2,048 levels of pressure sensitivity. Equipped with side buttons that can be used for right-click and eraser functions. ■ Compatible Models (example) ThinkPad X1 Yoga / X1 Carbon / X1 Tablet / P / Yoga series, etc. *Please check if your PC supports pen input on the manufacturer's website, etc., beforehand.