Go wireless with the ergonomically designed Targus W573 Wireless BlueTrace Mouse. Its 1,600 DPI optical sensor provides a precise response to mouse movements and its 2.4 GHz wireless technology reduces interference, delays, and signal drops. The mouse easily works on nearly any surface - from granite to carpet - and its BlueTrace technology* combines the power of optical technology with the precision of laser technology for remarkable tracking. When the small receiver isn't plugged into your computer's USB port, tuck it away into the convenient storage compartment inside the mouse so that you know exactly where it is when you're on the go. This mouse is comfortable to use, complete with technology that's convenient and highly functional.