The Logitech M590 Wireless Optical Silent Mouse gives you effortless control over your computer. With either Bluetooh or 2.4 Ghz wireless you'll always have a reliable connection.Its silent clicks mean you can work without disturbing others, and fast scrolling has you going through web pages in a flash.The Logitech M590 Wireless Optical Silent Mouse offers the ability to work on two computers and copy-paste from one to the other - even if you're using a PC and a Mac.With five programmable buttons, a curved, domed shape that supports your palm comfortably and a battery that lasts up to 2 years, you have a great mouse that's built to last.