3-button USB optical mouse is designed for office working. Hyper-fast scroll for easy navigation. Its 1.1M cord provides considerable reach and gives you free move. Easy to set up. Play and plug._x000D_Features:Professional SensorIt will follow your step whether you are in precise movement or a wide range of movement. You can enjoy virtually free movement with drifting control.Quick-Response ButtonThe Long-life button support for quick click and response command with high speed. Stay in motion status in gaming.Ergonomic DesignThe left and right sides are symmetrical. The design is suitable for user with either hand. Compatibility is more wide.Long Life SpanOver 5,000,000 times keystrokes.1600 DPIThe high definition enables precise optical tracking and smooth working experience.Specification:Max DPI: 1600Interface: USBButton number: 3Cable Length: 110cmMaterial: ABSItem size: 11.8 * 6.5 * 3cm / 4.65 * 2.56 * 1.18in(L * W * H)Item weight: Approx. 63g / 2.2oz_x000D_Package List:1 * USB Wired MouseNote: The package without user manual.