1) Throughput computation of speed, accuracy vs. touchpad, size medium only. Sample: 23 participants. 2) Requires Logi Options+ software (Windows 10 and macOS 10.15 or later). 3) Battery life may vary based on user and computing conditions 4) Device basic functions will be supported without software for systems other than Windows and macOS 5) Click noise reduced by over 90% compared to Logitech M185. Left click and typing dBA level measured by an independent lab at 1 metre. 6) Excludes printed circuit board (PCB) plastic