Brand: Logitech M510 Color: Black New. Package has some minor damage, but it's new. Contoured shape with soft rubber grips provides all-day comfort. Back/forward buttons and side-to-side scrolling plus zoom let you get more done, requires Logitech SetPoint software. 2-year battery life means you practically never have to change batteries; battery life may vary based on user and computing conditions. Comes with a tiny Logitech Unifying receiver that stays in your computer – plug it in and forget it. Works with Windows and Mac OS.