E-3lue E-Blue Mazer I Cobra 1600DPI Blue LED Optical USB Wired Gaming Mouse Hand Orientation: Both Hands Maximum dpi: 1600 dpi Windows Vista: Windows 98 / 2000 / ME / NT / XP / win 7 / Mac / or Latest Version: Standard Package Contents: E-3lue Mazer I Wired Gaming Mouse(Without Retail Package) Parts: 1 YEAR WARRANTY Labor: 1 YEAR WARRANTY