Yealink MB-Stylus-4A 4x Stylus for MeetingBoard series. The Yealink YC-MB Stylus 4A is a high-precision digital stylus designed for use with Yealink interactive displays. It provides a smooth, responsive writing and drawing experience, making it ideal for presentations, collaborative work, and classroom settings. With its ergonomic design and pressure sensitivity, the Stylus 4A allows users to interact seamlessly with content on screen, enhancing productivity and engagement.