Microsoft 3500 Wireless Mobile Mouse， Cyan Blue (GMF-00273)<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"> Blue Track Technology - Works on more surfaces than optical or laser technology. </span></li><li><span class="a-list-item"> Nano Transceiver - Leave it plugged in your notebook when you're on the go. The mouse has its own on/off switch. </span></li><li><span class="a-list-item"> Up to 8 months battery life - Power status indicator lets you know when your battery runs low. </span></li><li><span class="a-list-item"> Comfort - Designed by ergonomic experts for comfort in either hand. </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/41j%2Bp8N5efL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41qMy-q6%2BHL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41OdTjtK2-L.jpg" noproxy>