Wireless Keyboard and Mouse Combo (white mouse) 2.4 GHz wireless provides a powerful, reliable connection.Tiny USB Nano style receiver plugs into your PC and can stay there Ergonomic design, fits naturally in your hand.Smooth, precise and affordable wireless 3-button mouse with nano receiver for laptop, desktop and netbook PCs 1000 CPI resolution optical sensor.Allows for 10 meters effective operating distance and 360 degree reception Smooth cursor control and precise tracking.Hyper-fast scrolling lets you fly through long documents and Web pages The On/Off switch helps conserve power ,smart sleep mode extends battery life(1 AA alkaline battery included).Support operating system:Windows 7/8/10 and Mac OS;No function of programming