Logitech Wireless Mouse m317 with Unifying Receiver， Black (910-003416)<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"> Contoured design: Comfortable shape with soft side grips </span></li><li><span class="a-list-item"> Logitech Advanced Optical Tracking: Enjoy point-and-click precision and smooth scrolling </span></li><li><span class="a-list-item"> Unifying Receiver: Robust wireless connection with one tiny USB receiver that stays in your laptop </span></li><li><span class="a-list-item"> Long battery life: Up to 12 months of battery life virtually eliminates the need to change batteries </span></li><li><span class="a-list-item"> Wide compatibility: Works with Windows， Mac and Linux computers </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/410%2Bet-QgFL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41u1bp%2BtWNL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/61%2Btz%2B1k4JL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/517DfjhFB3L.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51MedpoPstL.jpg" noproxy>