Adesso iMouse G3 - Illuminated Gaming Mouse Enhanced Optical Sensor: The Optical sensor technology keeps the device precisely on point and lets you work on most of glass, wood, marble and leather surfaces without needing a mouse pad The 3 color LED lights let you choose your backlit color with a touch of a button and to suit your personal preference and mood; Work from dusk till dawn at your desk, study, or in the bedroom without disturbing others DPI Switching: Enables you to experience new levels of gaming excellence! Featuring a Green, Blue and Red 3 color illuminating lighting with 800, 1200, 1600, and 2400 DPI for playing or working in dark environments Forward / Back Button: The side of the mouse contains a Forward and Back Button for quick and easy internet navigation