Features:

1) Injection colors: totally transparent

2) Buttons: 

    a) 3 buttons

    b) Button life: over 1,000,000 times  

3) PS/2

4) 1,200dpi

5) USB and UP Combo ports available

6) 160cm long cable

7) Ergonomic design, excellent performance in computer games

8) With zoom-in and zoom-out functions

9) Can work on any surfaces, even glass

10) Transparent and ergonomic shape