Microsoft Wireless Desktop 850 with AES (PY9-00001)<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"> Advanced Encryption Standard (AES) 128-Bit Encryption </span></li><li><span class="a-list-item"> 2.4 GHz wireless delivers a reliable connection with up to a 15-foot range </span></li><li><span class="a-list-item"> Windows shortcut keys provide easy access to commonly used functions </span></li><li><span class="a-list-item"> Media keys for music and video control </span></li><li><span class="a-list-item"> Design is suitable for use with either hand </span></li><li><span class="a-list-item"> Optical Technology 1000 dpi provides responsive cursor control </span></li><li><span class="a-list-item"> Snap-in transceiver stows conveniently under the mouse </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/41Nch4t-Y2L.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41ewd3m2hXL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/31GqWF%2ByLFL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41PJ9l58i6L.jpg" noproxy>