Verbatim 96992 Easy Riser Wireless Notebook Laser Mouse with Nano Receiver- Silver and Black Adjustable mouse height for improved ergonomics. Designed for portability to fit easily and travel well. Convenient nano receiver storage for when you need it. Small enough to plug in once and leave connected. 2.4GHz reliability and performance System Requirements: USB 2.0 or 1.1, Windows XP, 2000, Vista, Mac OS 10.4.X and higher