The device may also be used as a cursor control and input device when connected to a computer.

该设备当连接到计算机时还可用作光标控制和输入设备。

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Note: it could be equipped cursor device to track with sealing and frequency control.

注：可配光标跟踪对版、变频调速。

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Note: it could be equipped cursor device to track with sealing and frequency control.

注：可配光标跟踪对版、变频调速。

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