Verbatim

Comfortable mouse with a very precise optical sensor, which allows you to set the sensitivity up to 1000 dpi.Sophisticated ergonomics ensures comfortable and in control of long-lasting work.The advantage is two-sided implementation ofmouse sits perfectly on the left and right hand.Click on the mouse 5 Customizable Buttons, which allow assign 48 different functions.
And specifications:

Color:
Black
Sensor type:
Optical
Resolution:
1, 000 dpi
Interface:
USB 2nd0 (cable)
Other:
Smooth oval shape for use on the left and right hand
Five programmable buttons (Only the Windows operating system)
Support functions Plug 'n' Play

Supported Operating Systems:
Windows 98, ME, 2000, XP and Vista
Mac 9thx higher
Dimensions:
127 mm x 60.3 x 39.6 mm

Package Contents:
Optical mouse for desktops,
User's Guide and software on CD