定位精确，快捷灵活。
智慧滚轮设计，翻页浏览更为便捷。
对称人体工学造型，左右手皆宜。
无需鼠标垫，适用于不同平面（除反光材料）。
安装简易，随插即用。
多款颜色，可供选择。
真正做到一年质保

Optical sensor technology have replaced the tracking ball mechanics that it scans your computer 1,500 times per second to pinpoint accuracy. This exciting new technology will enhance you with its smooth and perfect operation.
 - No tracking ball is required
- Works on most surface
- Reliable & comfortable control
- High speed motion detector
- Three programmable buttons
- Tracking speed 800 dpi