Microsoft-5RH-00001-Wireless-Mobile-Mouse-3500-for-Business-Microsoft-5RH-00001-P-This-wireless-mobile-mouse-from-Microsoft-has-been-designed-so-you-can-navigate-with-better-speed-accuracy-&-reliability-making-it-the-perfect-mouse-for-all-your-business-needs-The-Blue Track-Technology-combines-the-power-of-optical-with-the-precision-of-a-laser-for-remarkable-tracking-on-most-surfaces-apart-from-clear-glass-or-mirrored-surfaces-The-mouse-also-comes-with-a-plug-&-go-Nano-Transceiver-