The X9 Performance X9RFDYNAMOUSE is a 2. 4GHz wireless RF optical mouse with a 800/1200/1600 DPI switch button, right and left click buttons and scroll wheel/button for precise and smooth control. The compact design makes it ideal for "on-the-go" workflow and the ambidextrous design offers maximum comfort to both left-handed and right-handed users and helps to increase productivity. No software is required.