It is simply the cheapest on the market. It does its job decently. For a good and more expensive one, you go for LOGITECH or something similar. For a backup keyboard, it is good. You throw it in a drawer and when you need it, it's there until you get a Logitech.

Good keyboard, small, thin. However, quite noisy and the backspace key, which is the same size as the letters, doesn't personally suit me well. I was used to it being bigger, and even when I try to delete, I accidentally press adjacent buttons. Don't bother opening it, I unscrewed it and opened it to clean it, and a cable came loose from the circuit board. It's useless now