specification:

• System requirements：Windows95/98/2000/ME/XP/VISTA
  
• resolution:800DPI
  
• Button force: 65±10gf
  
• Keystrokes life:10,000,000 times keys life
  
• Keystrokes life:3,000,000 times keys life
  
• Size：122(L)×59.5(W)×38(H)

Features:

• 3D MOUSE
  
• Ergonomic design
  
• 800dpi High-precision optical sensors