Summary: Battery live is excellent. I am carrying this around in my laptop bag which has resulted in a short lifespan for other models.This one is holding up now for more than a year on the first set of batteries.
Summary: Yep fine little mouse, comfy, great battery life, just works fine. The on/off switch is tiny and difficult to move but as I have said the battery life is so good that one doesn't have to turn it off. It 'powers down' quickly so it is not drawing any significant current, good stuff.
Summary: Does what it says on the tin. It's a mouse without wires. I use it on my NC110 netbook. The receiver is of a low enough profile to leave plugged permanently into the netbook. Good product, good price from a know brand.