Gear Head 2.4 GHz Wireless Optical Nano Mouse， Purple/Black (MP2425PUR)<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"> Scalable DPI </span></li><li><span class="a-list-item"> Built-in Scroll Wheel </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></ul><!--   Loading EDP related metadata  --><div aria-live="polite" class="a-row a-expander-container a-expander-inline-container"><div aria-expanded="false" class="a-expander-content a-expander-extend-content" style="display: none;"><ul class="a-unordered-list a-vertical a-spacing-none"><li><span class="a-list-item">Automatic Wireless Synchronization</span></li><li><span class="a-list-item">Scalable DPI</span></li><li><span class="a-list-item">Built-in Scroll Wheel</span></li><li><span class="a-list-item">Storable Nano Receiver</span></li><li><span class="a-list-item">PC &amp; MAC Compatibles</span></li><li><span class="a-list-item">Mac OS 10.3 and above</span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/419i5cbpU4L.jpg" noproxy></div></div>