Digital Innovations AllTerrain Wired 3-Button Travel Mouse (4230900) Terrain Tested Tracking Technology utilizes a blue LED sensor to deliver rock-solid cursor control practically anywhere Retractable USB cable minimizes cable clutter in your luggage Textured scroll wheel lets you breeze through documents and web pages 1000 dpi sensor ensures an optimum blend of tracking speed and accuracy Attractive, ambidextrous design looks great and provides comfort for both left and right-handed users A retractable USB cable and compact size helps minimize clutter in your luggage The textured scroll wheel lets you breeze through documents and web pages A 1000dpi sensor ensures and optimum blend of tracking speed and accuracy