Optical FM Notebook Mouse Optical wireless FM mouse especially for notebooks. The extreme compact receiver has got an USB plug and for transport it can be fastened underneath the mouse. 800 dpi resolution 3 buttons with scroll wheel Special coating of lateral surfaces for optimum grip On/Off switch for manual power saving For Windows® 98SE, 2000, ME, XP, Vista For Mac OS 9.x or later For Linux kernel 2.6.x.y and later