TechPowerUp published a review on the MSI Clutch GM31 Lightweight
A quote from the article:
The GM31 is a small, right-handed ergonomic mouse weighing just 60 g. Equipped with PixArt's PMW3360 sensor, Omron main button switches, and pure PTFE feet, the GM31 is also compatible with NVIDIA Reflex.MSI Clutch GM31 Lightweight Review