Sensitive roller functionality: Crafted with innovative scroll control and a smooth handheld design, the sensitive roller enables effortless onehanded page zooming and supports shortvideo and ebook formats, while reducing unintended touch errors. Multipurpose compatibility: Wireless pairing with smartphones and tablets ensures consistent performance across devices, supporting multidevice setups and offering reliable remote control solutions for internetclass meetings and other versatile applications. Smart multifunction design: The modebutton longpress functionality provides precise control, acting as a contentcreation remote that unites capture, zoom, and pageturn features, delivering immersive reading support through an intelligent control mechanism. Efficient energy use: Innovative energysaving features extend usage, ensuring the battery sustains performance while reducing the need for frequent charging cycles. Use scenarios: Reading and annotating on tablets or ereaders: use the onehanded roller to zoom in/out and turn pages without removing your hands from the device. Online meetings and presentations: pair wirelessly with a smartphone or tablet to control slides, video, and document content remotely during internetclass sessions or collaborative talks. Content creation and tutorials: leverage capture and zoom alongside pageturn capabilities while recording or streaming instructional videos.