Logitech Wireless Mouse M545， Black (910-004054)<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"> The two extra thumb buttons put extra control right where you need it， so it's simpler and faster to get things done. </span></li><li><span class="a-list-item"> Dual-Axis wheel is optimized for smooth vertical scrolling while offering more power and control than a traditional scroll wheel </span></li><li><span class="a-list-item"> Includes plug-and-forget pico receiver with Unifying technology. Just 3 mm long， our smallest-ever wireless receiver. It's ideal for portable computers like laptops and Ultrabook devices </span></li><li><span class="a-list-item"> With up to 18 months of battery life from a single AA， you can almost forget about changing batteries. Smart sleep mode and an On/Off switch save power， while an indicator light eliminates surprises. </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/416uRHUXjqL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/4134eZ%2B%2BZ6L.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41SLEZVR7PL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41TSDIDdklL.jpg" noproxy>