Logitech Marathon Mouse M705 review: This curvy mouse gives your wrist the kind of break it deserves - CNET
Logitech M705 Marathon Wireless Optical Mouse with 5 Programmable Buttons Black 910-001935 - Best Buy
Amazon.com: Logitech M705 Wireless Marathon Mouse for PC - Long 3 Year Battery Life, Ergonomic Shape with Hyper-Fast Scrolling and USB Unifying Receiver for Computer and Laptop - Black (Renewed) : Everything Else