1、2.4G Wireless: Easy and fast operation with a USB receiver, 2.4G wireless technology extends the range of the mouse up to 33 feet, clean and space saving. 2、3 Levels DPI Adjustable: You can use 3 levels of DPI, 800DPI 1000DPI 1200DPI three levels of adjustable cursor sensitivity, noise canceling keys and quiet clicking allow you to focusing on your work without disturbing others. 3、Ergonomic Design: The keyboard has a tilt angle to fit the typing position, ergonomic design, plug and play for travel or on the go. 4、Quiet Button: Scissor type key structure provides super glossy typing experience, using the quiet button, you can enjoy comfortable and glossy typing. 5、Wide Range: Wireless keyboard mouse set works with all major operating systems, including desktop computers, mobile devices, tablets and more.