I received the Keyboard 81 Pro as a part of the Lab program from OnePlus. It is the Summer-Breeze variant with the Marble-Mallow Keycaps. Ask me anything about the design, sound, typing experience, performance, or anything else you're curious about!
Disclaimer: I am not affiliated with OnePlus, they did send the board to me for free, but everything I say will be my subjective opinion.