The Z-Nano is truly the world’s smallest mouse. It measures just 42mm (1.65″) x 21mm (0.83″) x 17.65mm (0.69″), it’s not much bigger than it’s attached USB cable or your fingertip. The cable even clips into the mouse itself with a powerful magnet for easy storage.
It even features a slot that you can use to slip in your own tiny photo to personalize the mouse. You’ll need to squint to see it. The world’s smallest mouse will cost you $60 and it will make your hand feel all weird and lonely, while your finger does all the work.