Get your lasso out and catch this one! The Cow Mouse is the ideal gift for milk lovers and cow accessory addicts. This state-of-the-art computer mouse with the funky black and white spots gets the fun back into office work and is even said to boost your concentration.Modern 3-Button Optical Wheel Mouse, Connection: USB with PS/2-Plug (suitable for PC and Mac)Resolution: 800 dpi3 years warrantySystem Requirements: Windows® 95/98/2000/ME/XP/NT/Vista, Mac OS X, LinuxNo additional software needed.