Marvo M207 Wired Optical Gamimg Mouse, 7-Color Backlight, 3200DPIErgonomic mouse shape that suits various grip styles, Rubber scroll wheel for enhanced feel, 7-color backlight with breathing effect, No driver required.Sensor: OpticalDPI: 800-1200-2400-3200Buttons: 6Switch rating: 3 million clicksBacklight: 7 colorsInterface: USB 2.0Cable length: 1.5 mOS support: Windows 7 or newer