Product details:

• Built-in flash, capacity range:128/256/512/1GB/2GB/4GB
  
  
• USB port, supports USB1.1/1.2 and hot plug&play
  
  
• System requirements: WINDOWS98/98SE/ME/2000XP/MAS OS/LINUX
  
  
• Date retention: at least 10years.
  
  
• LED indicator: light flashing (reading and writing),
  
  
• Ball Pen led indicator:light flashing (reading and writing)
  
  
• Unit size: 16mm*141mm(W*L)
  
  
• Inner packing:each gift box for 1pc outer packing :100pcs/ctn
  
  
• Unit weight:30g