Features:Tracking method:Optical sensor technologyConnect: USB 2.0 plug&use;Cable lenth: 1.5M with Toroidal braided cableCounterweight suitable for gaming userChoose ABS material for the mouse coat.Button life: 10 million clicksChipset:603EPLED: 7 Colour backlightLong Press DPI - button 3 seconds to turn off or turn on led light;Specifications:Material:PlasticMouse Size:Approx.12.4x7.1x3.9cm4.88x2.8x1.54inKeyboard Size:Approx.29.2x10.2x4cm11.5x4.02x1.57inInput Power:5VPower Consumption: 100mAPooling rate :125HzFPS:Max 4000FpsAccelerated Speed: 8GIPS:30inchsecButtons:LeftRightMiddle forwardbackDPI +DPI-DPI:1200-1800-2400-3600DPI(4 DPI stages)Note:Please allow 1-2cm errors due to manual measurement,please make sure that you do not mind before you order.Due to the difference between different monitors, the picture may not reflect the actual color of the item.Package includes:1x Gaming keyboard1x English User manual