The MM731 by CoolerMaster uses an Optical sensor from PixArt, providing a DPI/CPI range of 400-800-1200(Default)-1600-3200-8000-19000. This results in a tracking speed of 400 ips, and a maximum acceleration of 50g. It uses a Wired, 2.4 GHz, Bluetooth 5.1 connection. It weighs in at 59g without the cable and is approximately 122.3 x 69.0 x 39.1mm (LxWxH).

The MM731 retains the innovative, lightweight spirit of the MM710 series while maintaining the familiar aesthetic of classic gaming mice. Each pro-grade feature is intended to give you lightspeed responsiveness in the blink of an eye: genuine PTFE feet for unrivaled glide, hybrid 2.4GHz/Bluetooth wireless for supreme versatility, adjustable 19,000 DPI optical sensor, and optical micro switches for superior durability and input. With all of that housed in a super-lightweight, revolutionary new ergonomic shell design without holes that reduces the weight to <59g, the MM731 truly is less than the sum of its parts.