### Logitech MX Master 4: What We Know So Far
After last month’s Brazilian certification and a swiftly retracted teaser image leak, Logitech’s upcoming mouse, the MX Master 4, has now surfaced in a filing with the European Union Intellectual Property Office (EUIPO), offering a clearer insight into its design and features.
#### Design Overview
At first sight, the MX Master 4 retains the design ethos that has made the MX Master 3 and 3S favored by power users. Nonetheless, there are distinct alterations that differentiate it from its forerunners.
One of the most substantial updates is the addition of a third button on the side of the mouse. While the specific function of this button is still not clear, users are speculating that it might act as another remappable button or relate to AI capabilities.
The side profile of the mouse has also been revamped with a sharper cutout, which improves the visibility of the customizable thumb button. This button now seems to encompass the entire thumb rest area, replacing the smaller, subtler button present in the current generation.
Furthermore, Logitech has moved the charging and battery indicator LED to sit directly beneath the main scroll wheel, just below the mode-switching button for MagSpeed scrolling.
Minor adjustments include reshaped primary click buttons and a slightly elevated position for the side scroll wheel, which was first observed in the now-famed teaser image that emerged on Instagram last month.
#### Specs and Release Details
Currently, specific information regarding the MX Master 4’s specifications, pricing, and materials is still under wraps. However, there is optimism that Logitech has tackled the material quality and Bluetooth reliability issues highlighted by existing users.
With both Anatel certification and EUIPO filings now accessible to the public, along with the presence of marketing images, it is likely that an official launch is on the horizon.
For those keen on the MX Master series, discounts can be found on platforms such as Amazon.
#### Conclusion
The Logitech MX Master 4 is poised to be a promising addition to the MX Master lineup, featuring an updated design and attributes aimed at enhancing user experience. As we look forward to more information on its specifications and launch date, excitement among power users continues to build.
