"The quiet office standard for multi-device typing, with a built-in expiration date."
The 'Smarter Illumination' uses proximity and ambient light sensors to activate and adjust the backlight. This is an engineering necessity to make a wireless, backlit keyboard last days instead of hours on a single charge.
This is for professionals who toggle between multiple computers (e.g., a PC and a Mac) and value a quiet, consistent, laptop-style typing feel above all else. Users already in the Logitech MX ecosystem will find the software integration seamless.
Keyboard enthusiasts seeking the tactile feedback and customization of mechanical switches can find better value elsewhere. Anyone uncomfortable with a $120 product whose lifespan is dictated by a non-replaceable battery should reconsider.