The German company Zaunkoenig has released the world's lightest mouse called the M2K.It weighs only... 23 grams.
Reviewers call the M2K an engineering marvel.The mouse is only 79mm long. It is so small that you have to pick it up with your fingertips. However, just because a mouse is small doesn't mean it doesn't have powerful hardware. The buttons use Japanese Omron D2F01F switches.
M2K also provides the highest frequencysurvey among modern gaming mice - a whopping 8000 Hz thanks to the PixArt 3360 sensor. Of course, such a device costs a lot of money - 300 euros. This is one of the most expensive mice on the market and may not be for everyone.