https://zowie.benq.com/en/product/mouse/ec/ec1-b.html (https://zowie.benq.com/en/product/mouse/ec/ec1-b.html)
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Ergonomic design exclusively for right-handed users. It offers users a bigger room for wrist movements. The shape of the right side of mouse is well rounded. It allows the user’s fingertips to hold/cover the mouse to move smoothly. EC-B Series with 3360 sensor comes in two sizes to fulfill different needs.
This is my favorite mouse because it requires zero drivers for Windows or Linux. 100% plug and play. You can adjust the DPI via a button on bottom of mouse.