4 FT USB 2.0 Backlight Optical Mouse

-USB interface
-Support Microsft Windows 7,8,10, XP, 2000, ME and 98 operating systerms
-Key support: left, center, right
-DPI setting: fixed 800/1200DPI
-Built-in power management circuit
-Built-in LED driver circuit
-Built-in LED current limiting resistor