Portable Finger Hand Held 4D Usb Mini Trackball Mouse / Handheld USB Trackball Finger Mouse--Off-Ta

I liked that it moves more smoothly than my previous wireless trackball I purchased first. Still wish you could custom set the mouse buttons.

so I finally decided to replace my old trackball with the PS/2 connection, which naturally replaced my old, old trackball with the COM port connection. it's nice, tiny and convenient.

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