The world is your mouse pad. Enjoy smooth accurate cursor control in places where optical and standard laser mice fail, like glass desks. Features:

• New Logitech Dark field Laser Tracking works on more surfaces than other mice-even on glass
• Tiny Logitech Unifying receiver stays in your computer- plug it in, forget it, even add compatible wireless devices without multiple USB receivers
• Flexible recharging system for easy charging through your computer or a power outlet, even when you're using your mouse.