Hama 00053229 is an optical mouse with an 800 dpi resolution that connects to your computer via USB. It is compatible with both MAC OS 10.4.7 or higher and MS Windows 2000, XP, and Vista. The mouse has three buttons: left, right, and scroll wheel. The optical sensor provides precise tracking on most surfaces, making it ideal for everyday use. The scroll wheel allows for easy navigation of documents and web pages. For full functionality of the scroll wheel on Windows operating systems, an additional driver is required, which can be downloaded from the Hama website.