...just Touch it - OptoWheel technology - an optical sensor to replace the wheel and features a comfortable touch scroll panel. This allows for four way scrolling and is easier to use than the traditional mechanical wheel.
On the bottom of Traveler 355 Laser is the advanced laser technology that makes this mouse work reliably on most types of surfaces


features:
- laser technology provides more tracking power than LED optical mice
- OptoWheel - "touch scroll panel" lets you scroll multi directionally comfortably
- quick roll function lets you scroll forward or backward quickly
- sensitivity adjustment - 1600 and 800 dpi resolution
- port: USB

system requirements:
- IBM PC Pentium 233 compatible or higher
- Windows 2000/2003/XP/XP x64/Win7/Vista
- Macintosh with MAC OS X 10.2.8 or higher
- available USB- port
- CD/DVD-ROM drive for software installation

package content:
- mouse Traveler 355 Laser
- CD with driver
- quick quide

specifications:
- interface support: USB
- number of buttons: 3 (left, right, middle button with opto- wheel)
- resolution: 1600/800 dpi laser engine
- opto- wheel offers "touch scroll panel", resolution 50dpi

system support:
- Windows 2000/2003/XP/XP x64/Win7/Vista
- Macintosh MAC OS X 10.2.8 or higher

- dimension: 94x52x29 mm
- gift box: 220x190x55 mm
- body weight: 79g