Lenovo Active Capacity Pens for Touchscreen Laptop for Lenovo Yoga 730, Yoga 720, Flex 6, Flex 5, 2 in 1, Miix 720, Miix 510 and Yoga 900s Laptops, GX80K32882 Compatible with Yoga 720 13"/15", Flex 5 14"/15", Miix 700/720, Miix 510 and Yoga 900s 2048 Levels of pressure sensitivity Palm Rejection. Powered by a single AAAA battery, the Lenovo Active Pen also features two built-in side buttons for ease-of-access to applications. A USB pen holder for storage and three replacement pen tips for longer use Streamlined metal body design. Operating Systems: OS Independent Parts and labor - 1 year limited warranty. See official warranty statement for full details. Two quick-access side buttons can be configured for one-click open of your favorite apps Includes USB pen holder and three replacement tips Streamlined metal body design Powered by one AAAA battery Compatible with the following systems: MIIX 510 MIIX 700 MIIX 720 Yoga 900s