Features3 buttonsUp to 1200 DPIRGB lightingRetractable USB cableOptical sensorThe Adesso iMouse S8B Retractable Mini 3-Button RGB Optical Mouse is the perfect travel companion while on the road, and the perfect desktop mouse when you return. The innovative design features a built-in scroll wheel to enable you to scroll up or down with pinpoint accuracy and control. A retractable USB cable allows you to expand and collapse the cable for improved mobility. Its built-in DPI of 800/1200 and optical sensor lets you navigate your cursor with better speed, accuracy, and reliability on almost all surfaces.The USB cable is retractable making the tangling of wires a thing of the past. Pull cable at desired length with a maximum pull of 2.5 ft.The 2 Level DPI switch allows for different cursor sensitivities for your personal needs while providing accuracy and precision to maximize your tracking performance.Multi-coloured LEDs illuminate the edges of the mouse which gives the mouse a unique look and better accessibility in low-light environments.Optical sensor technology precisely and accurately tracks cursor movement and lets you work on most wood, marble and leather surfaces without the need of a mouse pad.