Logitech Cordless Optical Trackman T-RB22
高質素產品,非一般便宜貨
100% work
• No cord, no clutter, no hassle: cordless freedom, optical precision
• Comfortable, right-handed shape with a large, finger-controlled trackball
• Advanced buttons for easy navigation, plus a scroll wheel
• Smart power management keeps battery working for months
• Digital radio technology requires no line-of-sight; patented optical technology maintains smooth tracking and superior precision
有使用痕跡
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