2.4 g nano wireless blue optical light mouse set with dpi switch black 800-1200 dpi
features nano receiver small enough to plug in once and leave connected . wireless plug in nano receiver and go wireless . 2.4 ghz reliability and performance . nano slot convenient nano receiver storage for when you need it . comfort grip smooth rubberized grip designed for comfort and control.specification compatible with usb 2.0 or 1.1 compatible with windows 98se me 2000 xp vista windows 7 adjustable optical sensor from 800-1200 dpi automatically power saving make battery working longer working range within 10 meters 30 feet on off switch turn on or turn off mouse power weight 3 oz package includes wireless mouse x 1 nano receiver comes stored inside mouse