Verbatim Mini Travel Optical Mouse, Metro Series - Red (97255) Ultra-compact design. Measures L x D x H (in): 1.69 x 2.95 x 1.14 Features a convenient fully-retractable USB cable no need to wrap the cord around the mouse or deal with tangles Retractable cable is approximately 30 in. long when fully extended. Works with Windows and Mac OS, USB 2.0 interface (also compatible with USB 1.1 ports) Verbatim has been a leader in data storage technology since 1969, and guarantees this product with a 1-year limited warranty and technical support