1) Radio Frequency (RF) wireless transmission technology

2) Radio frequency: 27MHz

3) Up to 256 IDs to avoid interference

4) Freely 360-degree use during 1.5meters distance.

5) Unique power-management design for power saving.

6) Hard resolution: 800dpi

7) System requirement: Windows95/98/2000/ME/NT/XP/Vista

Technical Details:
Tracking resolution:   800dpi
Operating Force: 75+_20mg
Switch: 3 buttons
Dimension: 93*52*33mm
Power Rating:   5V, 100mA max
Certification:   CE,FCC