Logitech MX Master Wireless Mouse， Large Mouse， Computer Wireless Mouse<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"> Unique thumb wheel: For horizontal navigation and advanced gestures </span></li><li><span class="a-list-item"> Easy connections for multiple computers: Use with up to three Windows or Mac computers via included Unifying receiver or Bluetooth Smart wireless technology </span></li><li><span class="a-list-item"> Easy switching between computers with the touch of the button </span></li><li><span class="a-list-item"> Tracks virtually anywhere - even on glass: The Dark field Laser sensor tracks flawlessly even on glass and high-gloss surfaces (4mm minimum thickness) </span></li><li><span class="a-list-item"> Advanced power management: Up to 40 days of power on single charge. You can get enough power for a full day of usage in only 4 minutes， with no downtime while recharging. ( Battery life may vary based on user and computer conditions) </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/41I%2BLa0eXHL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41YR6rfzODL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/31sxxMqdPML.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41Uz9-HZU0L.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/312u5FomztL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/316HmuGLOWS.png" noproxy><img src="http://ecx.images-amazon.com/images/I/41YUC06BkhS.png" noproxy>