logitech mouse I have here when you open the lid for the batter you have a slot for the usb connector in it and it only takes 1 AA battery. I have no idea what the mouse looks like but I know what I like in the mouse I currectly have. which is the fact I never have to worry where the usb connector is.
As for AA and AAA batteries they are easiest to buy when I need to get them and almost everything in my house uses them. so I also just get the 40 pack when I need batteries.
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