Gear Head Wireless Optical Nano Mouse， Snow Leopard (MP2120SNL)<div style="text-align: left;"><strong>[Product Information]</strong><ul><li id="replacementPartsFitmentBullet" class="aok-hidden" data-doesntfitmessage="We're not sure this item fits your " data-fitsmessage="This fits your "><span class="a-list-item"><span id="replacementPartsFitmentBulletInner"><a href="#" class="a-link-normal hsx-rpp-fitment-focus">Enter your model number</a>to make sure this fits.</span></span></li><li><span class="a-list-item"> Optical Sensing Technology </span></li><li><span class="a-list-item"> 2.4 GHz Wireless Connectivity </span></li><li><span class="a-list-item"> Automatic Wireless Synchronization </span></li><li><span class="a-list-item"> Built-in Scroll Wheel </span></li><li><span class="a-list-item"> Stowable Nano Receiver </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/51akC0zhqzL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41z64bguUPL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41bR1MCDmYL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/418bwA7JANL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41G6iKoFb5L.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41mqLRZVM1L.jpg" noproxy>