★Interface ： PS2,USB,U+P Combo(optional)
★Ergonomic & Comfortable design with good handle
★Compatible with Windows 95/98/2000/NT/ME/XP ect.
★LED lights ：blue or seven color(optional)
★Color Printing ：all colors availuable(optional)
★High Resolution ：800dpi
★Keystroke lifecycle over 1,000,000 times
★Advanced optical technology and excellent optical tracing engine can make cursor precisely locate even when you move quickly