This is:

Logitech Pebble Keys 2 K380s, Multi-Device Bluetooth Wireless Keyboard with Customisable Shortcuts, Slim and Portable, Easy-Switch for Windows, macOS, iPadOS, Android, Chrome OS - Tonal Graphite

With Box and batteries!

I bought it on 22 Dec 2024 & have maintained it very well. I just now need a mechanical keyboard so decided to sell it. The current market price is 3.1K.

It has a beautiful app, lot of configurations, crazy battery life, bluetooth connectivity, looks so beautiful and minimal on desk.