Enjoy the freedom of wireless navigation! This H4001 Wireless Ball Mouse uses RF (Radio Frequency) technology so you can work and play without any wires getting in the way! It features two buttons and a scroll wheel for easy point and click navigation through web pages and documents and includes a PS/2 Receiver. Plus, its ergonomic shape lets you work comfortably. Simply plug the receiver into your computer's PS/2 port and get to work! Get rid of those annoying wires and get this H4001 3-Button Wireless Scroll Ball Mouse today! Order now!