* Mouse communicates with receiver using reliable radio technology. * Receiver plugs directly into your USB port * When not in use, receiver snaps into the bottom of the mouse to save power. * Advanced 800-dpi optical technology means no mouse ball to clean and allows you to work on almost any surface * Compact and portable for desktop or notebook computers * Scroll wheel enables easy navigation through documents * Includes 2 AAA batteries which last 2-3 monthsIt is highly recommended to always use the most recent driver version available.Do not forget to check with our site as often as possible in order to stay updated on the latest drivers, software and games.Try to set a system restore point before installing a device driver. This will help if you installed a wrong driver. Problems can arise when your hardware device is too old or not supported any longer.