specification:

• System requirements：Windows95/98/2000/ME/XP/VISTA
  
• Key layout: 103/104/105/106/107 Keys
  
• Full travel:3.0±0.3mm
  
• Peak travel: 0.25±0.2mm
  
• Button force: 57±7g
  
• Keystrokes life: over 8,000,000 times keys life
  
• Size：399(L)X170(W)X28.5(H)mm
  

Weight：640g

Features:

• 13 multi-media functional keys
  
• ultra thin and streamline design
  
• suitable for various language versions
  
• ergonomic design
  
• 2.4GHz radio frequency technology