The newer version of the M305 mouse can pair with the Unifying receiver, although it comes with a nano receiver. It has the Unifying logo on the underside of the mouse, but not on any of the packaging. Look for a 2011 copyright on the bottom of the package; the older 2009 version is not compatible with the Unifying receiver.
Yes definitely. I have a MacBook Pro and it works great with it, but I don't use it when I'm playing COD4 multiplayer as it interferes with the connection to the wireless router in gaming mode. But I love all the features it offers me. So my friend, go for it you won't regret it.
Turn it bottom up. Then look for a square depression in the plastic bottom. Look real close in good light and you will see an symbol that shows what direction to push and slide to open the compartment for the battery.
i just made that mistake. only certain new logitech peripheries are designed to use the new "unifying" receiver. I have a keyboard that came with the unifying receiver (the unifying receiver has a little orange logo on it that the other logitech receivers lack). I assumed I could just buy any mouse to couple with it. I receive the mouse today and sure enough, it requires the separate receiver that it came with. Luckily you can find a list of Logitech devices that work on the unifying USB receiver scheme here: http://www.amazon.com/gp/feature.html?docId=1000433301. The previous reviewer is incorrect that you have to buy a mouse and keyboard coupled together. You can buy a number of devices working on one receiver as long as they are certified to work on the unified brand.