The Wacom CS321A/KO-AX Bamboo Ink Smart Stylus in black is optimized for use with Windows Ink. This sleek stylus is designed to be compatible with Microsoft Surface models, making it a convenient and precise tool for writing and drawing on your tablet. With a battery-powered feature and a durable metal/aluminum construction, this stylus offers a seamless and high-quality user experience. This item is in new open box condition with minor defects from storage/shelf wear. The battery did fall out of the package and is not included. See pictures for details, message with any questions.