3-D buttons including scroll wheel
Ergonomic design, comfort for your right and left hands
USB compatible
Receiving range: 360 degrees
Effective operating distance: above 1.2m
Operating frequency: 27MHz
Optical navigation technology
Resolution: 800dpi
RF wireless technology
256 ID codes for each channel, avoiding interface problems
Power-saving design
Auto sleeping function, wake it up by click on any buttons
Compatible with Windows 95, 98, ME, 2000, XP, 2003, Mac OS 9.X and above OS