Lenovo has new gaming peripherals to debut at CES 2020. The Legion K300 is an entry-level RGB keyboard, while the Legion M300 is an equally budget-friendly mouse. The M600, on the other hand, is a USB type C wireless mouse touted as having the same 1000 hertz (Hz) polling rate as its wired counterparts.
https://www.notebookcheck.net/Lenovo-rounds-its-gaming-showcase-out-with-new-wireless-mice-and-an-RGB-keyboard.449121.0.html