Loc: Glennville, Ga., USA
First let me say I have no affiliation with 3M.
Its the 3M Ergonomic Mouse. This mouse isn't for everyone, its for right handers only, sorry lefties. It's joystick shaped, and does take some getting used to. But once You do, nothing else will do. I mouse a Lot, and this solved the wrist pain problems I was having.
I've had the wired version for over ten years. I don't see why anyone would want the wireless version and mess with batteries. Its about $55.
Oh, there's a button on the handle that takes the place of the scroll wheel.