Features

Superior Ergonomic Design:

The creator's of the world's first vertical mouse
User convenience with Vertical mouse 's signature,
pen-grip comfort.

Five Button, Full Function Mouse:

Introduces an all-new second right click button for this five button, full function mouse.
 You pick the hand position that best suits you. Plug and play. Compatible with Mac and PC.

-Interface: USB (Cable 1.5m / 5ft)
-Resolution: 800dpi
-Weight: 130g / 4.6oz (include USB cable)
-Demension: 82(W) x 100(D) x 80mm(H) / 3.2in(W) x 3.9in(D) x 3.1in(H)
-Button: 4 buttons in default / 1 scroll wheel (middle button)

System Requirements
-O/S: Windows 98/Me/2000,
Windows XP, Vista
Mac OS X+
Linux