M570 is the Set Point 6.15, which allows you to customize your mouse settings. You can set how many lines the scroll wheel will scroll, pointer speed, and pointer acceleration. There's even a specific section for gaming and a place to change default button settings. You can even enable cool effects like a pointer trail and the program keeps stats on you device, like how many days of battery power you have left.
The M570 comes with a Logitech 3-year limited hardware warranty and is compatible with Windows XP, Vista, 7, and Mac OSX.
Performance: The M570 was responsive when pitted up against everyday tasks and the gaming grid. Its 18 months of suggested battery life from Logitech and its versatility of use on any surface (since there is no mouse waggling required) proved it was a reliable competitor.
The Logitech Wireless Trackball M570 mouse provides a solid and reliable performance, coupled with a set of optional features to enhance the experience—all for the price of RS7399. Although, my experience was hampered by my small hands, which were unable to comfortably reach the scroll wheel and browser buttons, I was still impressed by the advanced navigating experience the M570 offered.