There have been ring mice before, but The Ring Mouse adds a new twist as it is really a miniature track ball with three mouse buttons. It’s small and ugly but this little peripheral might actually be useful if you like track balls. Here’s the scoop:
Optical trackball
-Mouse left and right keys
-Middle button
-Scrolling button or Laser pointer (Option)
-Resolution 1000cpi
-Maximum precision and control
-Comfortable and simple to use
-Windows Me/2000/XP/Vista compatible
-Dimension: 30(L)x 30(W)x 20(H) mm
(via TRFJ)

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