产品特点：

• 钻石之眼 光学追踪带来优良的准确度
• 鼠标舒适，只需指尖便可控制鼠标
• 与传统鼠标相比，占用更少桌面空间，减少手臂移动
• 可使用USB和PS/2接口
• Kensington无与伦比的保障

Features
Navigate with greater comfort and precision while saving valuable desktop space with the Kensington Orbit Optical Trackball. Its optical technology delivers precise cursor control with the touch of a finger while the two-button design provides an interface that’s familiar to mouse users

• All-day comfort from a world leader in trackball innovation
• Uses far less desk space than a mouse
• Optical technology delivers superior precision–no cleaning required
• Ambidextrous design for left or right-handed users
• USB and PS/2 connectivity for greater compatibility
• Kensington's unmatched satisfaction guarantee - five-year warranty, toll-free technical support, and 90-day no-risk trial
• 5.5"L X1.75"H X?5.0"W