I too, bought the Rii 4 keyboard. Absolutely love it. Got it for the steam deck, but also find myself using it with smart tv's, my work laptop, etc. Links below. (There is also a case you can buy that is hard shell.

Rii 4 keyboard https://a.co/d/3ZFsE6I

Case for Rii Keyboard https://www.amazon.com/dp/B08CV39M5H?psc=1&ref=ppx_yo2ov_dt_b_product_details