The Adesso keyboard and mouse with 2.4GHz has a 3-button and scrolling wheel design for easy navigation. This wireless keyboard and mouse combo (WKB-1330CB) eliminates the need for cords to conserve desktop space. Built-in 3-buttons and scrolling wheel for fast page navigation and handy control over browsers’ tabs. Offers plug and play interface Windows. Enjoy RF wireless connection compatibility with most of the devices. Features optical 1200 dpi resolution for silky prominent movement.