The MM831 by CoolerMaster uses an Optical sensor from PixArt, specifically the PAW 3335, providing a DPI/CPI range of 400, 1200(default), 4000, 16000, 32000. This is combined with a 32 bit ARM Cortex M0 64Pin. This results in a tracking speed of 400 ips, and a maximum acceleration of 40g. It uses a Wired, Wireless, Bluetooth connection with a 1.8m Braided Cable cable. It weighs in at 123g without the cable and is approximately 128.1 x 67.4 x 43.4 mm (LxWxH).
The MM831 has all the features you need and love in a gaming mouse, plus truly cord-free, lag-free connectivity. It features all the hallmarks of a legit mouse: pro-grade internals, thoughtfully ergonomic design, RGB lighting, and durable construction. But the addition of hybrid wireless connectivity plus Qi-compatible charging equals truly wireless fragging functionality. The MM831 doesn't just stand on its own -- it stands out from the rest of the pack.