The Cooler Master MM731 Gaming Mouse is completely black.
Only the Cooler Master logo forms a visual accent.
The two thumb keys are positioned on the side and are easy to reach.
From the front, we see the USB-C port, which can be used in wired mode if necessary. And if you look closely, we have to correct ourselves: the mouse wheel is not black but dark gray 😉
The bottom is really packed with details: the large PTFE pads, the compartment for the 2.4 GHz USB wireless receiver, the switches for connecting or selecting the connection mode, and the PixArt PAW 3370 optical sensor including a button for switching the sampling rate.