Optical resolution: 1600DPI
Working method: Optical
Number of buttons: 4
Wireless transmission frequency: 2.4 GHz
Adjustable resolution: third mode and below
Operating distance: 10m
Battery: 2 * AAA battery (excluding)
Roller direction: four way roller
Applicable models: desktops, laptops
Operating system: for Windows98se /for WindowsME /for Windows2000 /for WindowsXP /for Windows2003 /for Mac
Product size: 105 * 60 * 20mm/4.13*2.36*0.78''
Color: Black, Red, Grey, Silver
Please allow 1-3mm differs due to manual measurement.
Due to the different display and different light, the picture may not show the actual color of the item. Thanks for your understanding.