3D buttons
Ergonomic design, comfort for your right & left hands
USB compatible
Receiving range: 360 degrees
Effective operating distance: >10 m
Optical navigation technology
Resolution: 1000 DPI
RF 2.4Ghz  wireless technology
65536 ID codes for each channel, avoiding interface
    problems
Power-saving design
Turn off design
Auto sleeping function, wake-it-up by click on any
    buttons
Compatible with Windows 98/ME/NT4.0/2000/XP/
    2003/Vista,Mac OS 9.X and above OS
 No driver required
Operating temperature: 0°C ~ +60°C
Operating relative humidity: < 80%
NANO RECEIVER
2 x AAA batteries