Key Features -7 programmable buttons to gain a competitive edge -16.8 million colour palette with 7 lighting modes -Up to 1000Hz polling rate to ensure smooth and high-speed movement -4 adjustable DPI levels to meet your needs -Ambidextrous ergonomic design for both left and right-handed gamers Model M359 Sensor Type Optical Sensitivity 800/1200/2400/3200 dpi Buttons 7 (Programmable) Switch Rating 3 million clicks LED Lighting 7 RGB backlight modes Connection USB 2.0 Cable Length 1.6m cable Compatibility Windows 7 and above.