Verbatim Wireless Mini Travel Optical Mouse - Blue Mini optical travel mouse with USB 2.0 connector 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 Verbatim has been a leader in data storage technology since 1969, and guarantees this product with a 1 year limited warranty and technical support Ultra-portable design is great for storing in a briefcase for use on the road Nano wireless receiver - small enough to plug in once and leave connected USB 2.0 interface (also compatible with USB 1.1 ports) - allows for 2.4GHz wireless reliability and performance Functional mouse is compatible with Windows 7, Vista, and XP operating systems Backed by a Verbatim 1-year limited warranty