OCZ Eclipse Laser Gaming Mouse Programmable Functions and Keyboard Command Saving/Driver-less compatibility with most OS 2-way Scrolling wheel /Buttons: 5 + 2 dpi Switch/Hot Key: 1 Mode Switch at bottom / Onboard Memory/18g Customizable weight cartridges / Acceleration: 50G DPI: 400-800-1600-2400/Operating Voltage: 5V /LED display: 4-way DPI change Black rubberized surface for a no-slip grip /Includes Customization Software