定位精確，快捷靈活。
智慧滾輪設計，翻頁瀏覽更為便捷。
對稱人體工學造型，左右手皆宜。
無需鼠標墊，適用於不同平面（除反光材料）。
安裝簡易，隨插即用。
多款顏色，可供選擇。
真正做到一年質保

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