Color: Black Features: Optical Tracking Technology: The & nbsp; M220 is equipped with advanced Logitech optical tracking technology for ultra-precise movements over a large area on your PC or Apple computer. Compatible Operating Systems: The M220 USB wireless mouse is compatible with Windows, Mac, Chrome OS or Linux computers, which is very convenient for your computing environment. Long Battery Life: The batteries in this quiet wireless mouse have a battery life of eighteen months, enough to save energy Compact and Comfortable Design: The M220 Silent wireless mouse is small in size, very compact, yet comfortable. A mini size mouse that you can take with you on the go The Silent Mouse & nbsp; for more Comfort: Designed for the right hand with a soft rubber coating