Importer520 TINY USB WIRELESS CORDLESS Mini RF 800DPI Optical Mouse w/Receiver Storage XP/Vista/Windows 7/Mac Mini Wireless Optical Mouse provides a great radio frequency(RF) wireless input solution for the mob Mini Size (9cm x 5cm) for Mobile Purpose:It's portable and easy to store, excellent choice for your Precise Optical Technology: With 800 dpi high resolution, the motion can be perfectly detected and m Wireless Precision Tracking and RF operation sy Plug-and-play setup and operation(No driver is neede Receiver Eject Button, with one touch of the release button, you can eject the wireless receiver sto